From 7e9c79c79743f3a71d4c5bf5efaa24ff41952582 Mon Sep 17 00:00:00 2001
From: Bruno Bord <bruno.bord@people-doc.com>
Date: Fri, 10 Jul 2020 16:06:56 +0200
Subject: [PATCH] Migrating Labour Day as a worldwide holiday

* Labour Day is handled at the higher level (`core.Calendar`).
* Generalized this flag + optional label to 50 countries: Algeria, Angola, Argentina, Austria, Barbados, Belarus, Belgium, Benin, Brazil, Bulgaria, Chile, Colombia, Croatia, Cyprus, Czech Republic, European Central Bank, Finland, France, Germany, Greece, Hong-Kong, Hungary, Iceland, Italy, Ivory Coast, Kenya, Latvia, Lithuania, Luxembourg, Madagascar, Malaysia, Malta, Mexico, Norway, Panama, Paraguay, Poland, Portugal, Romania, Russia, Sao Tome & Principe, Serbia, Singapore, Slovakia, Slovenia, Spain (incl. Catalonia), Sweden, Switzerland, Turkey, Ukraine.
* Contributing documentation amended

refs #467
---
 Changelog.md                                |  3 +-
 contributing.md                             | 10 ++--
 workalendar/africa/algeria.py               |  3 +-
 workalendar/africa/angola.py                |  5 +-
 workalendar/africa/benin.py                 |  3 +-
 workalendar/africa/ivory_coast.py           |  3 +-
 workalendar/africa/kenya.py                 |  3 +-
 workalendar/africa/madagascar.py            |  4 +-
 workalendar/africa/sao_tome.py              |  4 +-
 workalendar/america/argentina.py            |  6 ++-
 workalendar/america/barbados.py             |  5 +-
 workalendar/america/brazil.py               |  4 +-
 workalendar/america/chile.py                |  4 +-
 workalendar/america/colombia.py             |  4 +-
 workalendar/america/mexico.py               |  3 +-
 workalendar/america/panama.py               |  4 +-
 workalendar/america/paraguay.py             |  4 +-
 workalendar/asia/hong_kong.py               |  4 +-
 workalendar/asia/malaysia.py                |  6 ++-
 workalendar/asia/singapore.py               |  8 ++--
 workalendar/core.py                         |  7 +++
 workalendar/europe/austria.py               |  6 ++-
 workalendar/europe/belarus.py               |  4 +-
 workalendar/europe/belgium.py               |  4 +-
 workalendar/europe/bulgaria.py              |  8 +++-
 workalendar/europe/croatia.py               |  6 ++-
 workalendar/europe/cyprus.py                |  5 +-
 workalendar/europe/czech_republic.py        |  5 +-
 workalendar/europe/european_central_bank.py |  4 +-
 workalendar/europe/finland.py               |  4 +-
 workalendar/europe/france.py                |  4 +-
 workalendar/europe/germany.py               |  4 +-
 workalendar/europe/greece.py                |  5 +-
 workalendar/europe/hungary.py               |  4 +-
 workalendar/europe/iceland.py               |  4 +-
 workalendar/europe/italy.py                 |  6 ++-
 workalendar/europe/latvia.py                |  4 +-
 workalendar/europe/lithuania.py             |  4 +-
 workalendar/europe/luxembourg.py            |  4 +-
 workalendar/europe/malta.py                 |  5 +-
 workalendar/europe/norway.py                |  4 +-
 workalendar/europe/poland.py                |  5 +-
 workalendar/europe/portugal.py              |  5 +-
 workalendar/europe/romania.py               |  4 +-
 workalendar/europe/russia.py                |  4 +-
 workalendar/europe/serbia.py                |  5 +-
 workalendar/europe/slovakia.py              |  4 +-
 workalendar/europe/slovenia.py              |  6 ++-
 workalendar/europe/spain.py                 |  5 +-
 workalendar/europe/sweden.py                |  4 +-
 workalendar/europe/switzerland.py           |  3 --
 workalendar/europe/turkey.py                |  4 +-
 workalendar/europe/ukraine.py               |  6 ++-
 workalendar/tests/test_africa.py            |  6 +++
 workalendar/tests/test_america.py           |  6 +++
 workalendar/tests/test_asia.py              |  6 +++
 workalendar/tests/test_europe.py            | 53 +++++++++++++++++++++
 workalendar/tests/test_turkey.py            |  6 +++
 58 files changed, 259 insertions(+), 64 deletions(-)

diff --git a/Changelog.md b/Changelog.md
index 29007a65..9ed2e27e 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -2,7 +2,8 @@
 
 ## master (unreleased)
 
-- Small refactoring for the Colombia / added docstrings & comments to explain why we're not using stock options. Added tests for year 2020 and handling shift exceptions. (#509).
+- Small refactoring for the Colombia / added docstrings & comments to explain why we're not using stock options. Added tests for year 2020 and handling shift exceptions (#509).
+- Migrating Labour Day as a worldwide holiday, disabled by default, but activated (to date) for about 50 countries (including label change when necessary), `contributing.md` documentation amended (#467).
 
 ## v10.3.0 (2020-07-10)
 
diff --git a/contributing.md b/contributing.md
index 920cc5e7..2513d97e 100644
--- a/contributing.md
+++ b/contributing.md
@@ -123,14 +123,18 @@ With the `WesternCalendar` base class you have at least one holiday as a bonus:
 
 ```python
 class Zhraa(WesternCalendar):
+
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (8, 2, "King Birthday"),
     )
 ```
 
+The `include_labour_day` is a flag common to all subclasses of `workalendar.core.Calendar`. Setting it to `True` activates the Labour Day for this calendar. Please note that there's a way to overwrite its label, using the `labour_day_label` class property.
+
 Now we've got 3 holidays out of 6.
 
+
 #### Add religious holidays
 
 Since we're using `WesternCalendar` (it inherits from `ChristianMixin`) as a base to our `Zhraa` class, it automatically adds Christmas Day as a holiday. Now we can add Easter monday just by switching the correct flag.
@@ -140,8 +144,8 @@ from ..core import WesternCalendar
 
 class Zhraa(WesternCalendar):
     include_easter_monday = True
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (8, 2, "King Birthday"),
     )
 ```
@@ -154,8 +158,8 @@ There are many static methods that will grant you a clean access to variable day
 ```python
 class Zhraa(WesternCalendar):
     include_easter_monday = True
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (8, 2, "King Birthday"),
     )
 
diff --git a/workalendar/africa/algeria.py b/workalendar/africa/algeria.py
index 5fd8ead7..680a3afa 100644
--- a/workalendar/africa/algeria.py
+++ b/workalendar/africa/algeria.py
@@ -5,6 +5,8 @@
 @iso_register('DZ')
 class Algeria(IslamicCalendar):
     "Algeria"
+    # Civil holidays
+    include_labour_day = True
     # Islamic holidays
     include_prophet_birthday = True
     include_eid_al_fitr = True
@@ -12,7 +14,6 @@ class Algeria(IslamicCalendar):
     include_islamic_new_year = True
 
     FIXED_HOLIDAYS = IslamicCalendar.FIXED_HOLIDAYS + (
-            (5, 1, "Labour Day"),
             (7, 5, "Independence Day"),
             (11, 1, "Anniversary of the revolution"),
         )
diff --git a/workalendar/africa/angola.py b/workalendar/africa/angola.py
index db69ed63..1bf13dab 100644
--- a/workalendar/africa/angola.py
+++ b/workalendar/africa/angola.py
@@ -5,6 +5,10 @@
 @iso_register('AO')
 class Angola(WesternCalendar):
     "Angola"
+    # Civil holiday
+    include_labour_day = True
+    labour_day_label = "Dia Internacional do Trabalhador"
+    # Christian holidays
     include_fat_tuesday = True
     fat_tuesday_label = "Dia de Carnaval"
     include_good_friday = True
@@ -16,7 +20,6 @@ class Angola(WesternCalendar):
         (2, 4, "Dia do Inicio da Luta Armada"),
         (3, 8, "Dia Internacional da Mulher"),
         (4, 4, "Dia da Paz"),
-        (5, 1, "Dia Internacional do Trabalhador"),
         (9, 17, "Dia do Fundador da Nação e do Herói Nacional"),
         (11, 11, "Dia da Independência Nacional"),
     )
diff --git a/workalendar/africa/benin.py b/workalendar/africa/benin.py
index f697c8fe..81541709 100644
--- a/workalendar/africa/benin.py
+++ b/workalendar/africa/benin.py
@@ -5,6 +5,8 @@
 @iso_register('BJ')
 class Benin(IslamoWesternCalendar):
     "Benin"
+    # Civil holidays
+    include_labour_day = True
     # Christian holidays
     include_easter_monday = True
     include_ascension = True
@@ -19,7 +21,6 @@ class Benin(IslamoWesternCalendar):
 
     FIXED_HOLIDAYS = IslamoWesternCalendar.FIXED_HOLIDAYS + (
         (1, 10, "Traditional Day"),
-        (5, 1, "Labour Day"),
         (8, 1, "Independence Day"),
         (10, 26, "Armed Forces Day"),
         (11, 30, "National Day"),
diff --git a/workalendar/africa/ivory_coast.py b/workalendar/africa/ivory_coast.py
index f2b6320a..b0f6b913 100644
--- a/workalendar/africa/ivory_coast.py
+++ b/workalendar/africa/ivory_coast.py
@@ -5,6 +5,8 @@
 @iso_register('CI')
 class IvoryCoast(IslamoWesternCalendar):
     "Ivory Coast"
+    # Civil holidays
+    include_labour_day = True
     # Christian holidays
     include_easter_monday = True
     include_ascension = True
@@ -18,7 +20,6 @@ class IvoryCoast(IslamoWesternCalendar):
     include_day_of_sacrifice_label = "Feast of the Sacrifice"
 
     FIXED_HOLIDAYS = IslamoWesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (8, 7, "Independence Day"),
         (11, 15, "National Peace Day"),
     )
diff --git a/workalendar/africa/kenya.py b/workalendar/africa/kenya.py
index c21c28a9..ce56f65f 100644
--- a/workalendar/africa/kenya.py
+++ b/workalendar/africa/kenya.py
@@ -8,6 +8,8 @@
 @iso_register('KE')
 class Kenya(IslamoWesternCalendar):
     "Kenya"
+    # Civil holidays
+    include_labour_day = True
     # Christian holidays
     include_good_friday = True
     include_easter_monday = True
@@ -20,7 +22,6 @@ class Kenya(IslamoWesternCalendar):
     WEEKEND_DAYS = (SAT, SUN)
 
     FIXED_HOLIDAYS = IslamoWesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (6, 1, "Madaraka Day"),
         (10, 20, "Mashujaa Day"),
         (12, 12, "Jamhuri Day"),
diff --git a/workalendar/africa/madagascar.py b/workalendar/africa/madagascar.py
index 5bbd544b..af1adc35 100644
--- a/workalendar/africa/madagascar.py
+++ b/workalendar/africa/madagascar.py
@@ -7,9 +7,11 @@ class Madagascar(WesternCalendar):
     "Madagascar"
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (3, 29, "Martyrs' Day"),
-        (5, 1, "Labour Day"),
         (6, 26, "Independence Day"),
     )
+    # Civil holidays
+    include_labour_day = True
+    # Christian holidays
     include_easter_monday = True
     include_ascension = True
     include_whit_monday = True
diff --git a/workalendar/africa/sao_tome.py b/workalendar/africa/sao_tome.py
index 20bba6fe..3ab0c770 100644
--- a/workalendar/africa/sao_tome.py
+++ b/workalendar/africa/sao_tome.py
@@ -7,10 +7,12 @@ class SaoTomeAndPrincipe(WesternCalendar):
     "São Tomé and Príncipe"
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (2, 3, "Martyr's Day"),
-        (5, 1, "Labour Day"),
         (7, 12, "Independence Day"),
         (9, 6, "Armed Forces Day"),
         (9, 30, "Agricultural Reform Day"),
         (12, 21, "São Tomé Day"),
     )
+    # Civil holidays
+    include_labour_day = True
+    # Christian holidays
     include_all_saints = True
diff --git a/workalendar/america/argentina.py b/workalendar/america/argentina.py
index a6dbc6f0..80f7ccf9 100644
--- a/workalendar/america/argentina.py
+++ b/workalendar/america/argentina.py
@@ -6,7 +6,10 @@
 @iso_register('AR')
 class Argentina(WesternCalendar):
     'Argentina'
-
+    # Civil holidays
+    include_labour_day = True
+    labour_day_label = "Día del Trabajador"
+    # Christian holidays
     include_fat_tuesday = True
     fat_tuesday_label = "Carnival"
     include_good_friday = True
@@ -16,7 +19,6 @@ class Argentina(WesternCalendar):
 
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (3, 24, "Día Nacional de la Memoria por la Verdad y la Justicia"),
-        (5, 1, "Día del Trabajador"),
         (5, 25, "Día de la Revolución de Mayo"),
         (6, 20, "Día Paso a la Inmortalidad del General Manuel Belgrano"),
         (7, 9, "Día de la Independencia"),
diff --git a/workalendar/america/barbados.py b/workalendar/america/barbados.py
index 3f3bc041..a1e384ee 100644
--- a/workalendar/america/barbados.py
+++ b/workalendar/america/barbados.py
@@ -8,7 +8,9 @@
 @iso_register("BB")
 class Barbados(WesternCalendar):
     "Barbados"
-
+    # Civil holidays
+    include_labour_day = True
+    # Christian holidays
     include_good_friday = True
     include_easter_sunday = True
     include_easter_monday = True
@@ -19,7 +21,6 @@ class Barbados(WesternCalendar):
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (1, 21, "Errol Barrow Day"),
         (4, 28, "National Heroes Day"),
-        (5, 1, "Labour Day"),
         (8, 1, "Emancipation Day"),
         (11, 30, "Independance Day"),
     )
diff --git a/workalendar/america/brazil.py b/workalendar/america/brazil.py
index d1cb4d08..1402a453 100644
--- a/workalendar/america/brazil.py
+++ b/workalendar/america/brazil.py
@@ -9,7 +9,6 @@ class Brazil(WesternCalendar):
     "Brazil"
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (4, 21, "Tiradentes' Day"),
-        (5, 1, "Labour Day"),
         (9, 7, "Independence Day"),
         (10, 12, "Our Lady of Aparecida"),
         (11, 2, "All Souls' Day"),
@@ -21,6 +20,8 @@ class Brazil(WesternCalendar):
     sao_pedro_label = "São Pedro"
     include_sao_joao = False
     sao_joao_label = "São João"
+    # Civil holidays
+    include_labour_day = True
     include_servidor_publico = False
     servidor_publico_label = "Dia do Servidor Público"
     # Consciência Negra day
@@ -30,6 +31,7 @@ class Brazil(WesternCalendar):
     consciencia_negra_day = (11, 20)
     consciencia_negra_label = "Consciência Negra"
     include_nossa_senhora_conceicao = False
+    # Christian holidays
     include_easter_sunday = True
 
     def get_variable_days(self, year):
diff --git a/workalendar/america/chile.py b/workalendar/america/chile.py
index af214c40..29c13f1e 100644
--- a/workalendar/america/chile.py
+++ b/workalendar/america/chile.py
@@ -8,7 +8,6 @@
 class Chile(WesternCalendar):
     "Chile"
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (5, 21, "Navy Day"),
         (6, 29, "Saint Peter and Saint Paul"),
         (7, 16, "Our Lady of Mount Carmel"),
@@ -17,6 +16,9 @@ class Chile(WesternCalendar):
         (10, 12, "Columbus Day"),
         (12, 31, "Banking Holiday"),
     )
+    # Civil holidays
+    include_labour_day = True
+    # Christian holidays
     include_good_friday = True
     include_easter_saturday = True
     include_assumption = True
diff --git a/workalendar/america/colombia.py b/workalendar/america/colombia.py
index a0a68fa8..b5e3497e 100644
--- a/workalendar/america/colombia.py
+++ b/workalendar/america/colombia.py
@@ -8,10 +8,12 @@
 class Colombia(WesternCalendar):
     "Colombia"
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (7, 20, "Independence Day"),
         (8, 7, "Boyacá Battle"),
     )
+    # Civil holidays
+    include_labour_day = True
+    # Christian holidays
     include_palm_sunday = True
     include_holy_thursday = True
     include_good_friday = True
diff --git a/workalendar/america/mexico.py b/workalendar/america/mexico.py
index 3f32bc1b..6b1ea9dc 100644
--- a/workalendar/america/mexico.py
+++ b/workalendar/america/mexico.py
@@ -8,9 +8,10 @@
 class Mexico(WesternCalendar):
     "Mexico"
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (9, 16, "Independence Day"),
     )
+    # Civil holidays
+    include_labour_day = True
 
     def get_variable_days(self, year):
         days = super().get_variable_days(year)
diff --git a/workalendar/america/panama.py b/workalendar/america/panama.py
index 5ac465a7..683c351e 100644
--- a/workalendar/america/panama.py
+++ b/workalendar/america/panama.py
@@ -7,13 +7,15 @@
 @iso_register('PA')
 class Panama(WesternCalendar):
     "Panama"
+    # Civil holidays
+    include_labour_day = True
+    # Christian holidays
     include_good_friday = True
     include_easter_saturday = True
     include_easter_sunday = True
 
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (1, 9, "Martyrs' Day"),
-        (5, 1, "Labour Day"),
         (11, 3, "Independence Day"),
         (11, 5, "Colon Day"),
         (11, 10, "Shout in Villa de los Santos"),
diff --git a/workalendar/america/paraguay.py b/workalendar/america/paraguay.py
index 9d69a458..f5da56e0 100644
--- a/workalendar/america/paraguay.py
+++ b/workalendar/america/paraguay.py
@@ -8,12 +8,14 @@
 class Paraguay(WesternCalendar):
     "Paraguay"
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (5, 14, "Independence Day"),
         (6, 12, "Chaco Armistice"),
         (9, 19, "Army holiday"),
         (12, 8, "Virgin of Caacupé Day"),
     )
+    # Civil holidays
+    include_labour_day = True
+    # Christian holidays
     include_holy_thursday = True
     include_good_friday = True
     include_easter_saturday = True
diff --git a/workalendar/asia/hong_kong.py b/workalendar/asia/hong_kong.py
index 48df4cc0..52964f59 100644
--- a/workalendar/asia/hong_kong.py
+++ b/workalendar/asia/hong_kong.py
@@ -11,6 +11,9 @@
 @iso_register('HK')
 class HongKong(WesternMixin, ChineseNewYearCalendar):
     "Hong Kong"
+    # Civil holidays
+    include_labour_day = True
+    # Christian holidays
     include_good_friday = True
     include_easter_saturday = True
     include_easter_monday = True
@@ -19,7 +22,6 @@ class HongKong(WesternMixin, ChineseNewYearCalendar):
     WEEKEND_DAYS = (SUN,)
 
     FIXED_HOLIDAYS = ChineseNewYearCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (7, 1, "SAR Establishment Day"),
         (10, 1, "National Day"),
     )
diff --git a/workalendar/asia/malaysia.py b/workalendar/asia/malaysia.py
index fa203886..480b0875 100644
--- a/workalendar/asia/malaysia.py
+++ b/workalendar/asia/malaysia.py
@@ -10,6 +10,11 @@
 @iso_register('MY')
 class Malaysia(IslamicMixin, ChineseNewYearCalendar):
     "Malaysia"
+    # Civil holidays
+    include_labour_day = True
+    labour_day_label = "Workers' Day"
+
+    # Islamic holidays
     include_nuzul_al_quran = True
     include_eid_al_fitr = True
     length_eid_al_fitr = 2
@@ -25,7 +30,6 @@ class Malaysia(IslamicMixin, ChineseNewYearCalendar):
 
     FIXED_HOLIDAYS = ChineseNewYearCalendar.FIXED_HOLIDAYS + (
         (2, 1, "Federal Territory Day"),
-        (5, 1, "Workers' Day"),
         (8, 31, "National Day"),
         (9, 16, "Malaysia Day"),
         (12, 25, "Christmas Day"),
diff --git a/workalendar/asia/singapore.py b/workalendar/asia/singapore.py
index 722a8168..97f56293 100644
--- a/workalendar/asia/singapore.py
+++ b/workalendar/asia/singapore.py
@@ -10,6 +10,9 @@
 @iso_register('SG')
 class Singapore(WesternMixin, IslamicMixin, ChineseNewYearCalendar):
     "Singapore"
+    # Civil holidays
+    include_labour_day = True
+
     # Christian holiday
     include_good_friday = True
 
@@ -20,7 +23,6 @@ class Singapore(WesternMixin, IslamicMixin, ChineseNewYearCalendar):
     day_of_sacrifice_label = "Hari Raya Haji"
 
     FIXED_HOLIDAYS = ChineseNewYearCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (8, 9, "National Day"),
     )
 
@@ -50,8 +52,8 @@ class Singapore(WesternMixin, IslamicMixin, ChineseNewYearCalendar):
         2017: date(2017, 10, 18),
         2018: date(2018, 11, 6),
         2019: date(2019, 10, 27),
-        2020: date(2020, 11, 14),   # This might change
-        2021: date(2021, 11, 4),
+        2020: date(2020, 11, 14),
+        2021: date(2021, 11, 4),  # This might change
     }
     chinese_new_year_label = "Chinese Lunar New Year's Day"
     include_chinese_second_day = True
diff --git a/workalendar/core.py b/workalendar/core.py
index a3c688f7..8f77196f 100644
--- a/workalendar/core.py
+++ b/workalendar/core.py
@@ -802,6 +802,8 @@ class Calendar(CoreCalendar):
     """
     include_new_years_day = True
     shift_new_years_day = False
+    include_labour_day = False
+    labour_day_label = "Labour Day"
 
     def get_fixed_holidays(self, year):
         days = super().get_fixed_holidays(year)
@@ -809,6 +811,11 @@ def get_fixed_holidays(self, year):
             days.insert(
                 0, (date(year, 1, 1), "New year")
             )
+
+        if self.include_labour_day:
+            days.append(
+                (date(year, 5, 1), self.labour_day_label)
+            )
         return days
 
     def get_variable_days(self, year):
diff --git a/workalendar/europe/austria.py b/workalendar/europe/austria.py
index d7e0f203..c59f13f7 100644
--- a/workalendar/europe/austria.py
+++ b/workalendar/europe/austria.py
@@ -7,10 +7,12 @@ class Austria(WesternCalendar):
     'Austria'
 
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "National Holiday"),  # Staatsfeiertag
         (10, 26, "National Holiday"),  # Nationalfeiertag
     )
-
+    # Civil holidays
+    include_labour_day = True
+    labour_day_label = "State Holiday"  # Staatsfeiertag
+    # Christian holidays
     include_epiphany = True
     include_easter_monday = True
     include_ascension = True
diff --git a/workalendar/europe/belarus.py b/workalendar/europe/belarus.py
index e4a9292d..2cdb5f96 100644
--- a/workalendar/europe/belarus.py
+++ b/workalendar/europe/belarus.py
@@ -7,14 +7,16 @@
 class Belarus(OrthodoxCalendar):
     'Belarus'
     "as of http://president.gov.by/en/holidays_en/"
+    # Civil holidays
+    include_labour_day = True
 
+    # Christian holidays
     include_christmas = False
 
     FIXED_HOLIDAYS = OrthodoxCalendar.FIXED_HOLIDAYS + (
         (1, 2, "Day After New Year"),
         (1, 7, "Christmas (Orthodox)"),
         (3, 8, "International Women's Day"),
-        (5, 1, "Labour Day"),
         (5, 9, "Victory Day"),
         (7, 3, "Republic Day"),
         (11, 7, "October Revolution Day"),
diff --git a/workalendar/europe/belgium.py b/workalendar/europe/belgium.py
index 10f40856..9ca4e1ce 100644
--- a/workalendar/europe/belgium.py
+++ b/workalendar/europe/belgium.py
@@ -7,11 +7,13 @@ class Belgium(WesternCalendar):
     'Belgium'
 
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (7, 21, "National Day"),
         (11, 11, "Armistice of 1918"),
     )
+    # Civil holidays
+    include_labour_day = True
 
+    # Christian holidays
     include_easter_monday = True
     include_ascension = True
     include_whit_monday = True
diff --git a/workalendar/europe/bulgaria.py b/workalendar/europe/bulgaria.py
index 3d5de620..aa8ec2f6 100644
--- a/workalendar/europe/bulgaria.py
+++ b/workalendar/europe/bulgaria.py
@@ -8,16 +8,20 @@ class Bulgaria(WesternCalendar):
 
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (3, 3, "Liberation Day"),  # Ден на Освобождението на Б
-        (5, 1, "International Workers' Day"),  # Ден на труда и на междунар
         (5, 6, "Saint George's Day"),  # Гергьовден, ден на храброс
         (5, 24, "Saints Cyril & Methodius Day"),  # Ден на българската просвет
         (9, 6, "Unification Day"),  # Ден на Съединението
         (9, 22, "Independence Day"),  # Ден на независимостта на Б
         # wikipedia says Non-attendance day for schools, otherwise a working da
         # (11, 1, "National Awakening Day"),  # Ден на народните будители
-
     )
 
+    # Civil holidays
+    include_labour_day = True
+    # Ден на труда и на междунар
+    labour_day_label = "International Workers' Day"
+
+    # Christian holidays
     include_easter_sunday = True
     include_easter_monday = True
     include_christmas_eve = True  # Бъдни вечер
diff --git a/workalendar/europe/croatia.py b/workalendar/europe/croatia.py
index db094386..bb5ce796 100644
--- a/workalendar/europe/croatia.py
+++ b/workalendar/europe/croatia.py
@@ -9,11 +9,15 @@ class Croatia(WesternCalendar):
     'Croatia'
 
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "International Workers' Day"),
         (6, 22, "Anti-Fascist Struggle Day"),
         (8, 5, "Victory & Homeland Thanksgiving & Day of Croatian defenders"),
     )
 
+    # Civil holidays
+    include_labour_day = True
+    labour_day_label = "International Workers' Day"
+
+    # Christian holidays
     include_epiphany = True
     include_easter_sunday = True
     include_easter_monday = True
diff --git a/workalendar/europe/cyprus.py b/workalendar/europe/cyprus.py
index 4f63f9eb..d6e65c7b 100644
--- a/workalendar/europe/cyprus.py
+++ b/workalendar/europe/cyprus.py
@@ -7,6 +7,10 @@
 class Cyprus(WesternCalendar):
     'Cyprus'
 
+    # Civil holidays
+    include_labour_day = True
+
+    # Christian holidays
     include_epiphany = True
     include_clean_monday = True
     include_good_friday = True
@@ -22,7 +26,6 @@ class Cyprus(WesternCalendar):
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (3, 25, "Greek Independence Day"),
         (4, 1, "Cyprus National Day"),
-        (5, 1, "Labour Day"),
         (7, 15, "Dormition of the Theotokos"),
         (10, 1, "Cyprus Independence Day"),
         (10, 28, "Greek National Day"),
diff --git a/workalendar/europe/czech_republic.py b/workalendar/europe/czech_republic.py
index 3746ee2d..85f383f4 100644
--- a/workalendar/europe/czech_republic.py
+++ b/workalendar/europe/czech_republic.py
@@ -6,12 +6,15 @@
 class CzechRepublic(WesternCalendar):
     'Czech Republic'
 
+    # Civil holidays
+    include_labour_day = True
+
+    # Christian holidays
     include_easter_monday = True
     include_good_friday = True
 
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (1, 1, "Restoration Day of the Independent Czech State"),
-        (5, 1, "Labour Day"),
         (5, 8, "Liberation Day"),
         (7, 5, "Saints Cyril and Methodius Day"),
         (7, 6, "Jan Hus Day"),
diff --git a/workalendar/europe/european_central_bank.py b/workalendar/europe/european_central_bank.py
index 253af33d..59603a41 100644
--- a/workalendar/europe/european_central_bank.py
+++ b/workalendar/europe/european_central_bank.py
@@ -3,10 +3,12 @@
 
 class EuropeanCentralBank(WesternCalendar):
     "European Central Bank"
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (12, 26, "St. Stephen's Day"),
     )
 
+    # Christian holidays
     include_good_friday = True
     include_easter_monday = True
diff --git a/workalendar/europe/finland.py b/workalendar/europe/finland.py
index 561eef33..ff3d7e0d 100644
--- a/workalendar/europe/finland.py
+++ b/workalendar/europe/finland.py
@@ -7,6 +7,7 @@
 class Finland(WesternCalendar):
     'Finland'
 
+    # Christian holidays
     include_epiphany = True
     include_good_friday = True
     include_easter_sunday = True
@@ -18,8 +19,9 @@ class Finland(WesternCalendar):
     include_boxing_day = True
     boxing_day_label = "St. Stephen's Day"
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (12, 6, "Independence Day"),
     )
 
diff --git a/workalendar/europe/france.py b/workalendar/europe/france.py
index cd5618e1..b596d670 100644
--- a/workalendar/europe/france.py
+++ b/workalendar/europe/france.py
@@ -6,14 +6,16 @@
 class France(WesternCalendar):
     'France'
 
+    # Christian holidays
     include_easter_monday = True
     include_ascension = True
     include_whit_monday = True
     include_all_saints = True
     include_assumption = True
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (5, 8, "Victory in Europe Day"),
         (7, 14, "Bastille Day"),
         (11, 11, "Armistice Day"),
diff --git a/workalendar/europe/germany.py b/workalendar/europe/germany.py
index 94801b67..9c0207af 100644
--- a/workalendar/europe/germany.py
+++ b/workalendar/europe/germany.py
@@ -7,11 +7,13 @@
 class Germany(WesternCalendar):
     'Germany'
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (10, 3, "Day of German Unity"),
     )
 
+    # Christian holidays
     include_easter_monday = True
     include_ascension = True
     include_whit_monday = True
diff --git a/workalendar/europe/greece.py b/workalendar/europe/greece.py
index 900e4bcb..b87349bb 100644
--- a/workalendar/europe/greece.py
+++ b/workalendar/europe/greece.py
@@ -6,11 +6,14 @@
 class Greece(OrthodoxCalendar):
     'Greece'
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = OrthodoxCalendar.FIXED_HOLIDAYS + (
         (3, 25, "Independence Day"),
-        (5, 1, "Labour Day"),
         (10, 28, "Ohi Day"),
     )
+
+    # Christian holidays
     include_epiphany = True
     include_clean_monday = True
     include_annunciation = True
diff --git a/workalendar/europe/hungary.py b/workalendar/europe/hungary.py
index a6c255ee..a1a9c4ff 100644
--- a/workalendar/europe/hungary.py
+++ b/workalendar/europe/hungary.py
@@ -6,6 +6,7 @@
 class Hungary(WesternCalendar):
     'Hungary'
 
+    # Christian holidays
     include_easter_sunday = True
     include_easter_monday = True
     include_whit_sunday = True
@@ -16,9 +17,10 @@ class Hungary(WesternCalendar):
     boxing_day_label = "Second Day of Christmas"
     include_all_saints = True
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (3, 15, "National Day"),
-        (5, 1, "Labour Day"),
         (8, 20, "St Stephen's Day"),
         (10, 23, "National Day"),
     )
diff --git a/workalendar/europe/iceland.py b/workalendar/europe/iceland.py
index bd2b4f84..8c331e2f 100644
--- a/workalendar/europe/iceland.py
+++ b/workalendar/europe/iceland.py
@@ -7,6 +7,7 @@
 class Iceland(WesternCalendar):
     'Iceland'
 
+    # Christian holidays
     include_holy_thursday = True
     include_good_friday = True
     include_easter_monday = True
@@ -16,8 +17,9 @@ class Iceland(WesternCalendar):
     include_boxing_day = True
     boxing_day_label = "St Stephen's Day"
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (6, 17, "Icelandic National Day"),
         (12, 31, "New Year's Eve"),
     )
diff --git a/workalendar/europe/italy.py b/workalendar/europe/italy.py
index 93eb7f0b..4bc95ffc 100644
--- a/workalendar/europe/italy.py
+++ b/workalendar/europe/italy.py
@@ -6,11 +6,15 @@
 class Italy(WesternCalendar):
     'Italy'
 
+    # Civil holidays
+    include_labour_day = True
+    labour_day_label = "International Workers' Day"
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (4, 25, "Liberation Day"),
-        (5, 1, "International Workers' Day"),
         (6, 2, "Republic Day"),
     )
+
+    # Christian holidays
     include_immaculate_conception = True
     include_epiphany = True
     include_easter_monday = True
diff --git a/workalendar/europe/latvia.py b/workalendar/europe/latvia.py
index f6b67b9b..dec4567d 100644
--- a/workalendar/europe/latvia.py
+++ b/workalendar/europe/latvia.py
@@ -7,14 +7,16 @@
 class Latvia(WesternCalendar):
     'Latvia'
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (6, 23, "Midsummer Day"),
         (6, 24, "St. John's Day"),
         (11, 18, "Proclamation Day"),
         (12, 31, "New Years Eve"),
     )
 
+    # Christian holidays
     include_good_friday = True
     include_easter_sunday = True
     include_easter_monday = True
diff --git a/workalendar/europe/lithuania.py b/workalendar/europe/lithuania.py
index 243d1242..8931e94b 100644
--- a/workalendar/europe/lithuania.py
+++ b/workalendar/europe/lithuania.py
@@ -6,14 +6,16 @@
 class Lithuania(WesternCalendar):
     'Lithuania'
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (2, 16, "Restoration of the State Day"),
         (3, 11, "Restoration of Independence Day"),
-        (5, 1, "Labour Day"),
         (6, 24, "St. John's Day"),
         (7, 6, "Anniversary of the Coronation of King Mindaugas"),
     )
 
+    # Christian holidays
     include_easter_sunday = True
     include_easter_monday = True
     include_assumption = True
diff --git a/workalendar/europe/luxembourg.py b/workalendar/europe/luxembourg.py
index ae675282..11209d06 100644
--- a/workalendar/europe/luxembourg.py
+++ b/workalendar/europe/luxembourg.py
@@ -7,6 +7,7 @@
 class Luxembourg(WesternCalendar):
     'Luxembourg'
 
+    # Christian holidays
     include_easter_monday = True
     include_ascension = True
     include_whit_monday = True
@@ -14,8 +15,9 @@ class Luxembourg(WesternCalendar):
     include_assumption = True
     include_boxing_day = True
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (6, 23, "Luxembourg National Holiday"),
     )
 
diff --git a/workalendar/europe/malta.py b/workalendar/europe/malta.py
index b6ae564c..5a2b3ad6 100644
--- a/workalendar/europe/malta.py
+++ b/workalendar/europe/malta.py
@@ -6,11 +6,15 @@
 class Malta(WesternCalendar):
     'Malta'
 
+    # Christian holidays
     include_good_friday = True
     include_assumption = True
     include_immaculate_conception = True
     include_christmas = True
 
+    # Civil holidays
+    include_labour_day = True
+    labour_day_label = "Worker's Day"  # (Jum il-Ħaddiem)
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         # National Holidays
         (3, 31, "Freedom Day"),            # (Jum il-Ħelsien)
@@ -21,6 +25,5 @@ class Malta(WesternCalendar):
         # Public Holidays
         (2, 10, "Feast of Saint Paul's Shipwreck"),
         (3, 19, "Feast of Saint Joseph"),  # (San Ġużepp)
-        (5, 1, "Worker's Day"),            # (Jum il-Ħaddiem)
         (6, 29, "Feast of Saint Peter & Saint Paul"),  # (L-Imnarja)
     )
diff --git a/workalendar/europe/norway.py b/workalendar/europe/norway.py
index 936d9e6f..dfe3319f 100644
--- a/workalendar/europe/norway.py
+++ b/workalendar/europe/norway.py
@@ -6,6 +6,7 @@
 class Norway(WesternCalendar):
     'Norway'
 
+    # Christian holidays
     include_holy_thursday = True
     include_good_friday = True
     include_easter_sunday = True
@@ -16,7 +17,8 @@ class Norway(WesternCalendar):
     include_boxing_day = True
     boxing_day_label = "St Stephen's Day"
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (5, 17, "Constitution Day"),
     )
diff --git a/workalendar/europe/poland.py b/workalendar/europe/poland.py
index 380467d2..76ee25ef 100644
--- a/workalendar/europe/poland.py
+++ b/workalendar/europe/poland.py
@@ -6,12 +6,15 @@
 class Poland(WesternCalendar):
     'Poland'
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (1, 6, 'Trzech Kroli'),
-        (5, 1, 'Labour Day'),
         (5, 3, 'Constitution Day'),
         (11, 11, 'Independence Day'),
     )
+
+    # Christian holidays
     include_easter_sunday = True
     include_easter_monday = True
     include_whit_sunday = True
diff --git a/workalendar/europe/portugal.py b/workalendar/europe/portugal.py
index 4ea0c2dd..f8dbbcbf 100644
--- a/workalendar/europe/portugal.py
+++ b/workalendar/europe/portugal.py
@@ -7,13 +7,16 @@
 class Portugal(WesternCalendar):
     'Portugal'
 
+    # Christian holidays
     include_good_friday = True
     include_easter_sunday = True
     include_christmas = True
 
+    # Civil holidays
+    include_labour_day = True
+    labour_day_label = "Dia do Trabalhador"
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (4, 25, "Dia da Liberdade"),
-        (5, 1, "Dia do Trabalhador"),
         (6, 10, "Dia de Portugal"),
         (8, 15, "Assunção de Nossa Senhora"),
         (12, 8, "Imaculada Conceição"),
diff --git a/workalendar/europe/romania.py b/workalendar/europe/romania.py
index 51e20d0f..8f5e4688 100644
--- a/workalendar/europe/romania.py
+++ b/workalendar/europe/romania.py
@@ -7,15 +7,17 @@
 class Romania(OrthodoxCalendar):
     'Romania'
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = OrthodoxCalendar.FIXED_HOLIDAYS + (
         (1, 2, "Day After New Year"),
         (1, 24, "Union Day"),
-        (5, 1, "Labour Day"),
         (8, 15, "Dormition of the Theotokos"),
         (11, 30, "St. Andrew's Day"),
         (12, 1, "National Day/Great Union"),
     )
 
+    # Christian holidays
     include_good_friday = True
     include_easter_sunday = True
     include_easter_monday = True
diff --git a/workalendar/europe/russia.py b/workalendar/europe/russia.py
index 0eb2ccfa..6a95862e 100644
--- a/workalendar/europe/russia.py
+++ b/workalendar/europe/russia.py
@@ -8,12 +8,14 @@ class Russia(OrthodoxCalendar):
 
     shift_new_years_day = True
 
+    # Civil holidays
+    include_labour_day = True
+
     FIXED_HOLIDAYS = OrthodoxCalendar.FIXED_HOLIDAYS + (
         (1, 2, "Day After New Year"),
         (1, 7, "Christmas"),
         (2, 23, "Defendence of the Fatherland"),
         (3, 8, "International Women's Day"),
-        (5, 1, "Labour Day"),
         (5, 9, "Victory Day"),
         (6, 12, "National Day"),
         (11, 4, "Day of Unity"),
diff --git a/workalendar/europe/serbia.py b/workalendar/europe/serbia.py
index 2d21d9dc..ec9b4ae9 100644
--- a/workalendar/europe/serbia.py
+++ b/workalendar/europe/serbia.py
@@ -11,11 +11,14 @@ class Serbia(OrthodoxCalendar):
         (1, 7, "Christmas"),
         (2, 15, "Statehood Day"),
         (2, 16, "Statehood Day"),
-        (5, 1, "Labour Day"),
         (5, 2, "Labour Day Holiday"),
         (11, 11, "Armistice Day"),
     )
 
+    # Civil holidays
+    include_labour_day = True
+
+    # Christian holidays
     include_good_friday = True
     include_easter_sunday = True
     include_easter_monday = True
diff --git a/workalendar/europe/slovakia.py b/workalendar/europe/slovakia.py
index 3a5d8ef3..84f3d9da 100644
--- a/workalendar/europe/slovakia.py
+++ b/workalendar/europe/slovakia.py
@@ -6,6 +6,7 @@
 class Slovakia(WesternCalendar):
     'Slovakia'
 
+    # Christian holidays
     include_epiphany = True
     include_easter_monday = True
     include_good_friday = True
@@ -14,9 +15,10 @@ class Slovakia(WesternCalendar):
     include_boxing_day = True
     boxing_day_label = "St. Stephen's Day (The Second Christmas Day)"
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (1, 1, "Day of the Establishment of the Slovak Republic"),
-        (5, 1, "Labour Day"),
         (5, 8, "Liberation Day"),
         (7, 5, "Saints Cyril and Methodius Day"),
         (8, 29, "Slovak National Uprising anniversary"),
diff --git a/workalendar/europe/slovenia.py b/workalendar/europe/slovenia.py
index 899a4438..b7dac86b 100644
--- a/workalendar/europe/slovenia.py
+++ b/workalendar/europe/slovenia.py
@@ -7,17 +7,19 @@
 class Slovenia(WesternCalendar):
     'Slovenia'
 
+    # Christian holidays
     include_easter_sunday = True
     include_easter_monday = True
     include_whit_sunday = True
     include_assumption = True
     include_christmas = True
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (2, 8, "Preseren Day, the Slovenian Cultural Holiday"),
         (4, 27, "Day of Uprising Against Occupation"),
-        (5, 1, "Labour Day"),
-        (5, 2, "Labour Day"),
+        (5, 2, "Labour Day"),  # In Slovenia, Labour Day is 2-day long.
         (6, 25, "Statehood Day"),
         (10, 31, "Reformation Day"),
         (11, 1, "Day of Remembrance of the Dead"),
diff --git a/workalendar/europe/spain.py b/workalendar/europe/spain.py
index f10700ee..a915a9f3 100644
--- a/workalendar/europe/spain.py
+++ b/workalendar/europe/spain.py
@@ -6,14 +6,17 @@
 class Spain(WesternCalendar):
     'Spain'
 
+    # Christian holidays
     include_epiphany = True
     include_immaculate_conception = True
     include_good_friday = True
     include_assumption = True
     include_all_saints = True
 
+    # Civil holidays
+    include_labour_day = True
+    labour_day_label = "Día del trabajador"
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Día del trabajador"),
         (10, 12, "Fiesta nacional de España"),
         (12, 6, "Día de la Constitución Española")
     )
diff --git a/workalendar/europe/sweden.py b/workalendar/europe/sweden.py
index 08214843..2bf89acc 100644
--- a/workalendar/europe/sweden.py
+++ b/workalendar/europe/sweden.py
@@ -7,6 +7,7 @@
 class Sweden(WesternCalendar):
     'Sweden'
 
+    # Christian holidays
     include_epiphany = True
     include_good_friday = True
     include_easter_sunday = True
@@ -19,8 +20,9 @@ class Sweden(WesternCalendar):
     include_boxing_day = True
     boxing_day_label = "Second Day of Christmas"
 
+    # Civil holidays
+    include_labour_day = True
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
-        (5, 1, "Labour Day"),
         (6, 6, "National Day"),
         # New Year's Eve is not a holiday but not a work day either
         (12, 31, "New Year's Eve")
diff --git a/workalendar/europe/switzerland.py b/workalendar/europe/switzerland.py
index d21fd05f..4d970072 100644
--- a/workalendar/europe/switzerland.py
+++ b/workalendar/europe/switzerland.py
@@ -27,7 +27,6 @@ class Switzerland(WesternCalendar):
     # Swiss entries with varying observance - opt in
     include_berchtolds_day = False
     include_st_josephs_day = False
-    include_labour_day = False
 
     FIXED_HOLIDAYS = WesternCalendar.FIXED_HOLIDAYS + (
         (8, 1, "National Holiday"),
@@ -39,8 +38,6 @@ def get_variable_days(self, year):
             days.append((date(year, 1, 2), "Berchtold's Day"))
         if self.include_st_josephs_day:
             days.append((date(year, 3, 19), "St Joseph's Day"))
-        if self.include_labour_day:
-            days.append((date(year, 5, 1), "Labour Day"))
         return days
 
 
diff --git a/workalendar/europe/turkey.py b/workalendar/europe/turkey.py
index c8dacc80..78e8a84a 100644
--- a/workalendar/europe/turkey.py
+++ b/workalendar/europe/turkey.py
@@ -16,9 +16,11 @@ class Turkey(IslamicCalendar):
     include_eid_al_adha = True
     length_eid_al_adha = 4
 
+    # Civil holidays
+    include_labour_day = True
+    labour_day_label = "Labor and Solidarity Day"
     FIXED_HOLIDAYS = IslamicCalendar.FIXED_HOLIDAYS + (
         (4, 23, "National Sovereignty and Children's Day"),
-        (5, 1, "Labor and Solidarity Day"),
         (5, 19, "Commemoration of Atatürk, Youth and Sports Day"),
         (7, 15, "Democracy and National Unity Day"),
         (8, 30, "Victory Day"),
diff --git a/workalendar/europe/ukraine.py b/workalendar/europe/ukraine.py
index 000edbdc..a04963db 100644
--- a/workalendar/europe/ukraine.py
+++ b/workalendar/europe/ukraine.py
@@ -12,10 +12,12 @@ class Ukraine(OrthodoxCalendar):
 
     FIXED_HOLIDAYS = OrthodoxCalendar.FIXED_HOLIDAYS + (
         (3, 8, "International Women’s Day"),
-        (5, 1, "Workers Solidarity Day"),
         (5, 9, "Victory Day"),
     )
-
+    # Civil holidays
+    include_labour_day = True
+    labour_day_label = "Workers Solidarity Day"
+    # Christian holidays
     include_christmas = False
     include_good_friday = True
     include_easter_sunday = True
diff --git a/workalendar/tests/test_africa.py b/workalendar/tests/test_africa.py
index c00ac70e..87d5b837 100644
--- a/workalendar/tests/test_africa.py
+++ b/workalendar/tests/test_africa.py
@@ -555,6 +555,12 @@ def test_carnaval_label(self):
         label_carnaval = holidays_dict[date(2018, 2, 13)]
         self.assertEqual(label_carnaval, "Dia de Carnaval")
 
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays_dict = dict(holidays)
+        label = holidays_dict[date(2020, 5, 1)]
+        self.assertEqual(label, "Dia Internacional do Trabalhador")
+
 
 class KenyaTest(GenericCalendarTest):
     cal_class = Kenya
diff --git a/workalendar/tests/test_america.py b/workalendar/tests/test_america.py
index 1921b67f..c06bdaac 100644
--- a/workalendar/tests/test_america.py
+++ b/workalendar/tests/test_america.py
@@ -124,6 +124,12 @@ def test_carnival_label(self):
         label_carnival = holidays[date(2020, 2, 25)]
         self.assertEqual(label_carnival, "Carnival")
 
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        label = holidays[date(2020, 5, 1)]
+        self.assertEqual(label, "Día del Trabajador")
+
 
 class ChileTest(GenericCalendarTest):
     cal_class = Chile
diff --git a/workalendar/tests/test_asia.py b/workalendar/tests/test_asia.py
index da2da8c4..2f9c1eb8 100644
--- a/workalendar/tests/test_asia.py
+++ b/workalendar/tests/test_asia.py
@@ -437,6 +437,12 @@ def test_missing_thaipusam(self):
         # Back to normal, to avoid breaking further tests
         self.cal.MSIA_THAIPUSAM[2020] = save_2020
 
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        self.assertEqual(
+            holidays[date(2020, 5, 1)], "Workers' Day")
+
 
 class QatarTest(GenericCalendarTest):
     cal_class = Qatar
diff --git a/workalendar/tests/test_europe.py b/workalendar/tests/test_europe.py
index 8e5a3f9d..d8c85c0a 100644
--- a/workalendar/tests/test_europe.py
+++ b/workalendar/tests/test_europe.py
@@ -61,6 +61,12 @@ def test_year_2016(self):
         self.assertIn(date(2016, 12, 25), holidays)  # Xmas
         self.assertIn(date(2016, 12, 26), holidays)  # St Stephens
 
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        self.assertEqual(holidays[date(2020, 5, 1)], "State Holiday")
+        # a.k.a. Staatsfeiertag
+
 
 class BelarusTest(GenericCalendarTest):
     cal_class = Belarus
@@ -112,6 +118,12 @@ def test_year_2016(self):
         # Non-attendance day for schools, otherwise a working day.
         self.assertNotIn(date(2016, 11, 1), holidays)   # National Awakening
 
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        self.assertEqual(
+            holidays[date(2020, 5, 1)], "International Workers' Day")
+
 
 class CaymanIslandsTest(GenericCalendarTest):
     cal_class = CaymanIslands
@@ -298,6 +310,12 @@ def test_remembrance_day(self):
         holidays_2020 = self.cal.holidays_set(2020)
         self.assertIn(date(2020, 11, 18), holidays_2020)
 
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        self.assertEqual(
+            holidays[date(2020, 5, 1)], "International Workers' Day")
+
 
 class Cyprus(GenericCalendarTest):
     cal_class = Cyprus
@@ -639,6 +657,12 @@ def test_year_2017(self):
         self.assertIn(date(2017, 12, 8), holidays)  # Il-Kunċizzjoni
         self.assertIn(date(2017, 12, 25), holidays)  # Il-Milied
 
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        self.assertEqual(
+            holidays[date(2020, 5, 1)], "Worker's Day")
+
 
 class NorwayTest(GenericCalendarTest):
     cal_class = Norway
@@ -784,6 +808,12 @@ def test_year_2013(self):
         self.assertIn(date(2013, 12, 25), holidays)  # christmas
         self.assertIn(date(2013, 12, 26), holidays)  # San Stefano
 
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        self.assertEqual(
+            holidays[date(2020, 5, 1)], "International Workers' Day")
+
 
 class LatviaTest(GenericCalendarTest):
 
@@ -984,6 +1014,11 @@ def test_year_2018(self):
         holidays = self.cal.holidays_set(2018)
         self.assertNotIn(date(2018, 5, 2), holidays)  # Workers Solidarity Day
 
+    def test_may_1st_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        self.assertEqual(holidays[date(2020, 5, 1)], "Workers Solidarity Day")
+
 
 class UnitedKingdomTest(GenericCalendarTest):
     cal_class = UnitedKingdom
@@ -1192,6 +1227,12 @@ def test_year_2016(self):
         # Restauração da Independência
         self.assertIn(date(2016, 12, 1), holidays)
 
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        self.assertEqual(
+            holidays[date(2020, 5, 1)], "Dia do Trabalhador")
+
 
 class SpainTest(GenericCalendarTest):
     cal_class = Spain
@@ -1218,6 +1259,12 @@ def test_year_2016(self):
         self.assertIn(date(2016, 12, 6), holidays)
         self.assertIn(date(2016, 12, 8), holidays)
 
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        self.assertEqual(
+            holidays[date(2020, 5, 1)], "Día del trabajador")
+
 
 class CataloniaTest(GenericCalendarTest):
     cal_class = Catalonia
@@ -1255,6 +1302,12 @@ def test_year_2016(self):
         self.assertIn(date(2016, 12, 25), holidays)
         self.assertIn(date(2016, 12, 26), holidays)
 
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        self.assertEqual(
+            holidays[date(2020, 5, 1)], "Día del trabajador")
+
 
 class SerbiaTest(GenericCalendarTest):
     cal_class = Serbia
diff --git a/workalendar/tests/test_turkey.py b/workalendar/tests/test_turkey.py
index 3861cb3b..36d58d1c 100644
--- a/workalendar/tests/test_turkey.py
+++ b/workalendar/tests/test_turkey.py
@@ -79,3 +79,9 @@ def test_year_2019(self):
         self.assertIn(date(2019, 8, 12), holidays)
         self.assertIn(date(2019, 8, 13), holidays)
         self.assertIn(date(2019, 8, 14), holidays)
+
+    def test_labour_day_label(self):
+        holidays = self.cal.holidays(2020)
+        holidays = dict(holidays)
+        self.assertEqual(
+            holidays[date(2020, 5, 1)], "Labor and Solidarity Day")