diff --git a/CHANGELOG.md b/CHANGELOG.md
index 22d7c3fa..d6657fb2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 - Fixed compilation warning from gettext
 - Added `cycled` option for `Timex.between?/4` to support time-range checks that pass through midnight
 - Add Croatian translation
+- Add Catalan translation
 
 ### Fixed
 
diff --git a/priv/translations/ca/LC_MESSAGES/day_periods.po b/priv/translations/ca/LC_MESSAGES/day_periods.po
new file mode 100644
index 00000000..dd6f6728
--- /dev/null
+++ b/priv/translations/ca/LC_MESSAGES/day_periods.po
@@ -0,0 +1,28 @@
+## This file is a PO Template file.
+##
+## `msgid`s here are often extracted from source code.
+## Add new translations manually only if they're dynamic
+## translations that can't be statically extracted.
+##
+## Run `mix gettext.extract` to bring this file up to
+## date. Leave `msgstr`s empty as changing them here as no
+## effect: edit them in PO (`.po`) files instead.
+msgid ""
+msgstr ""
+"Language: ca\n"
+
+#: lib/l10n/translator.ex:266
+msgid "AM"
+msgstr "AM"
+
+#: lib/l10n/translator.ex:268
+msgid "PM"
+msgstr "PM"
+
+#: lib/l10n/translator.ex:267
+msgid "am"
+msgstr "am"
+
+#: lib/l10n/translator.ex:269
+msgid "pm"
+msgstr "pm"
diff --git a/priv/translations/ca/LC_MESSAGES/months.po b/priv/translations/ca/LC_MESSAGES/months.po
new file mode 100644
index 00000000..a481e41a
--- /dev/null
+++ b/priv/translations/ca/LC_MESSAGES/months.po
@@ -0,0 +1,60 @@
+## This file is a PO Template file.
+##
+## `msgid`s here are often extracted from source code.
+## Add new translations manually only if they're dynamic
+## translations that can't be statically extracted.
+##
+## Run `mix gettext.extract` to bring this file up to
+## date. Leave `msgstr`s empty as changing them here as no
+## effect: edit them in PO (`.po`) files instead.
+msgid ""
+msgstr ""
+"Language: ca\n"
+
+#: lib/l10n/translator.ex:303
+msgid "April"
+msgstr "Abril"
+
+#: lib/l10n/translator.ex:307
+msgid "August"
+msgstr "Agost"
+
+#: lib/l10n/translator.ex:311
+msgid "December"
+msgstr "Desembre"
+
+#: lib/l10n/translator.ex:301
+msgid "February"
+msgstr "Febrer"
+
+#: lib/l10n/translator.ex:300
+msgid "January"
+msgstr "Gener"
+
+#: lib/l10n/translator.ex:306
+msgid "July"
+msgstr "Juliol"
+
+#: lib/l10n/translator.ex:305
+msgid "June"
+msgstr "Juny"
+
+#: lib/l10n/translator.ex:302
+msgid "March"
+msgstr "Març"
+
+#: lib/l10n/translator.ex:304
+msgid "May"
+msgstr "Maig"
+
+#: lib/l10n/translator.ex:310
+msgid "November"
+msgstr "Novembre"
+
+#: lib/l10n/translator.ex:309
+msgid "October"
+msgstr "Octubre"
+
+#: lib/l10n/translator.ex:308
+msgid "September"
+msgstr "Setembre"
diff --git a/priv/translations/ca/LC_MESSAGES/months_abbr.po b/priv/translations/ca/LC_MESSAGES/months_abbr.po
new file mode 100644
index 00000000..966f4cdb
--- /dev/null
+++ b/priv/translations/ca/LC_MESSAGES/months_abbr.po
@@ -0,0 +1,60 @@
+## This file is a PO Template file.
+##
+## `msgid`s here are often extracted from source code.
+## Add new translations manually only if they're dynamic
+## translations that can't be statically extracted.
+##
+## Run `mix gettext.extract` to bring this file up to
+## date. Leave `msgstr`s empty as changing them here as no
+## effect: edit them in PO (`.po`) files instead.
+msgid ""
+msgstr ""
+"Language: ca\n"
+
+#: lib/l10n/translator.ex:290
+msgid "Apr"
+msgstr "Abr"
+
+#: lib/l10n/translator.ex:294
+msgid "Aug"
+msgstr "Ag"
+
+#: lib/l10n/translator.ex:298
+msgid "Dec"
+msgstr "Des"
+
+#: lib/l10n/translator.ex:288
+msgid "Feb"
+msgstr "Febr"
+
+#: lib/l10n/translator.ex:287
+msgid "Jan"
+msgstr "Gen"
+
+#: lib/l10n/translator.ex:293
+msgid "Jul"
+msgstr "Jul"
+
+#: lib/l10n/translator.ex:292
+msgid "Jun"
+msgstr "Juny"
+
+#: lib/l10n/translator.ex:289
+msgid "Mar"
+msgstr "Març"
+
+#: lib/l10n/translator.ex:291
+msgid "May"
+msgstr "Maig"
+
+#: lib/l10n/translator.ex:297
+msgid "Nov"
+msgstr "Nov"
+
+#: lib/l10n/translator.ex:296
+msgid "Oct"
+msgstr "Oct"
+
+#: lib/l10n/translator.ex:295
+msgid "Sep"
+msgstr "Set"
diff --git a/priv/translations/ca/LC_MESSAGES/numbers.po b/priv/translations/ca/LC_MESSAGES/numbers.po
new file mode 100644
index 00000000..2a511a4b
--- /dev/null
+++ b/priv/translations/ca/LC_MESSAGES/numbers.po
@@ -0,0 +1,16 @@
+## This file is a PO Template file.
+##
+## `msgid`s here are often extracted from source code.
+## Add new translations manually only if they're dynamic
+## translations that can't be statically extracted.
+##
+## Run `mix gettext.extract` to bring this file up to
+## date. Leave `msgstr`s empty as changing them here as no
+## effect: edit them in PO (`.po`) files instead.
+msgid ""
+msgstr ""
+"Language: ca\n"
+
+#: lib/l10n/translator.ex:389
+msgid "#,##0.###"
+msgstr "#.##0,###"
diff --git a/priv/translations/ca/LC_MESSAGES/relative_time.po b/priv/translations/ca/LC_MESSAGES/relative_time.po
new file mode 100644
index 00000000..3d6e36c5
--- /dev/null
+++ b/priv/translations/ca/LC_MESSAGES/relative_time.po
@@ -0,0 +1,232 @@
+## This file is a PO Template file.
+##
+## `msgid`s here are often extracted from source code.
+## Add new translations manually only if they're dynamic
+## translations that can't be statically extracted.
+##
+## Run `mix gettext.extract` to bring this file up to
+## date. Leave `msgstr`s empty as changing them here as no
+## effect: edit them in PO (`.po`) files instead.
+msgid ""
+msgstr ""
+"Language: es\n"
+
+#: lib/l10n/translator.ex:320
+msgid "last month"
+msgstr "el mes passat"
+
+#: lib/l10n/translator.ex:326
+msgid "last week"
+msgstr "la setmana passada"
+
+#: lib/l10n/translator.ex:314
+msgid "last year"
+msgstr "l'any passat"
+
+#: lib/l10n/translator.ex:322
+msgid "next month"
+msgstr "el mes que ve"
+
+#: lib/l10n/translator.ex:328
+msgid "next week"
+msgstr "pròxima setmana"
+
+#: lib/l10n/translator.ex:316
+msgid "next year"
+msgstr "l'any que vé"
+
+#: lib/l10n/translator.ex:321
+msgid "this month"
+msgstr "aquest mes"
+
+#: lib/l10n/translator.ex:327
+msgid "this week"
+msgstr "aquesta setmana"
+
+#: lib/l10n/translator.ex:315
+msgid "this year"
+msgstr "aquest any"
+
+#: lib/l10n/translator.ex:333
+msgid "today"
+msgstr "avui"
+
+#: lib/l10n/translator.ex:334
+msgid "tomorrow"
+msgstr "demá"
+
+#: lib/l10n/translator.ex:332
+msgid "yesterday"
+msgstr "ahir"
+
+#: lib/l10n/translator.ex:336
+msgid "%{count} day ago"
+msgid_plural "%{count} days ago"
+msgstr[0] "fa %{count} dia"
+msgstr[1] "fa %{count} dies"
+
+#: lib/l10n/translator.ex:361
+msgid "%{count} hour ago"
+msgid_plural "%{count} hours ago"
+msgstr[0] "fa %{count} hora"
+msgstr[1] "fa %{count} hores"
+
+#: lib/l10n/translator.ex:364
+msgid "%{count} minute ago"
+msgid_plural "%{count} minutes ago"
+msgstr[0] "fa %{count} minut"
+msgstr[1] "fa %{count} minuts"
+
+#: lib/l10n/translator.ex:324
+msgid "%{count} month ago"
+msgid_plural "%{count} months ago"
+msgstr[0] "fa %{count} mes"
+msgstr[1] "hace %{count} mesos"
+
+#: lib/l10n/translator.ex:367
+msgid "%{count} second ago"
+msgid_plural "%{count} seconds ago"
+msgstr[0] "fa %{count} segon"
+msgstr[1] "fa %{count} segons"
+
+#: lib/l10n/translator.ex:330
+msgid "%{count} week ago"
+msgid_plural "%{count} weeks ago"
+msgstr[0] "fa %{count} setmana"
+msgstr[1] "fa %{count} setmanes"
+
+#: lib/l10n/translator.ex:318
+msgid "%{count} year ago"
+msgid_plural "%{count} years ago"
+msgstr[0] "fa %{count} any"
+msgstr[1] "fa %{count} anys"
+
+#: lib/l10n/translator.ex:335
+msgid "in %{count} day"
+msgid_plural "in %{count} days"
+msgstr[0] "en %{count} dia"
+msgstr[1] "en %{count} dies"
+
+#: lib/l10n/translator.ex:360
+msgid "in %{count} hour"
+msgid_plural "in %{count} hours"
+msgstr[0] "en %{count} hora"
+msgstr[1] "en %{count} hores"
+
+#: lib/l10n/translator.ex:363
+msgid "in %{count} minute"
+msgid_plural "in %{count} minutes"
+msgstr[0] "en %{count} minut"
+msgstr[1] "en %{count} minuts"
+
+#: lib/l10n/translator.ex:323
+msgid "in %{count} month"
+msgid_plural "in %{count} months"
+msgstr[0] "en %{count} mes"
+msgstr[1] "en %{count} mesos"
+
+#: lib/l10n/translator.ex:366
+msgid "in %{count} second"
+msgid_plural "in %{count} seconds"
+msgstr[0] "en %{count} segon"
+msgstr[1] "en %{count} segons"
+
+#: lib/l10n/translator.ex:329
+msgid "in %{count} week"
+msgid_plural "in %{count} weeks"
+msgstr[0] "en %{count} setmana"
+msgstr[1] "en %{count} setmanes"
+
+#: lib/l10n/translator.ex:317
+msgid "in %{count} year"
+msgid_plural "in %{count} years"
+msgstr[0] "en %{count} any"
+msgstr[1] "en %{count} anys"
+
+#: lib/l10n/translator.ex:350
+msgid "last friday"
+msgstr "divendres passat"
+
+#: lib/l10n/translator.ex:338
+msgid "last monday"
+msgstr "dilluns passat"
+
+#: lib/l10n/translator.ex:353
+msgid "last saturday"
+msgstr "dissabte passat"
+
+#: lib/l10n/translator.ex:356
+msgid "last sunday"
+msgstr "diumenge passat"
+
+#: lib/l10n/translator.ex:347
+msgid "last thursday"
+msgstr "dijous passat"
+
+#: lib/l10n/translator.ex:341
+msgid "last tuesday"
+msgstr "dimarts passat"
+
+#: lib/l10n/translator.ex:344
+msgid "last wednesday"
+msgstr "dimecres passat"
+
+#: lib/l10n/translator.ex:352
+msgid "next friday"
+msgstr "el próxim divendres"
+
+#: lib/l10n/translator.ex:340
+msgid "next monday"
+msgstr "el próxim dilluns"
+
+#: lib/l10n/translator.ex:355
+msgid "next saturday"
+msgstr "el próxim dissabte"
+
+#: lib/l10n/translator.ex:358
+msgid "next sunday"
+msgstr "el próxim diumenge"
+
+#: lib/l10n/translator.ex:349
+msgid "next thursday"
+msgstr "el próxim dijous"
+
+#: lib/l10n/translator.ex:343
+msgid "next tuesday"
+msgstr "el próxim dimarts"
+
+#: lib/l10n/translator.ex:346
+msgid "next wednesday"
+msgstr "el próxim dimecres"
+
+#: lib/l10n/translator.ex:351
+msgid "this friday"
+msgstr "aquest divendres"
+
+#: lib/l10n/translator.ex:339
+msgid "this monday"
+msgstr "aquest dilluns"
+
+#: lib/l10n/translator.ex:354
+msgid "this saturday"
+msgstr "aquest dissabte"
+
+#: lib/l10n/translator.ex:357
+msgid "this sunday"
+msgstr "aquest diumenge"
+
+#: lib/l10n/translator.ex:348
+msgid "this thursday"
+msgstr "aquest dijous"
+
+#: lib/l10n/translator.ex:342
+msgid "this tuesday"
+msgstr "aquest dimarts"
+
+#: lib/l10n/translator.ex:345
+msgid "this wednesday"
+msgstr "aquest dimecres"
+
+#: lib/l10n/translator.ex:369
+msgid "now"
+msgstr "ara"
diff --git a/priv/translations/ca/LC_MESSAGES/symbols.po b/priv/translations/ca/LC_MESSAGES/symbols.po
new file mode 100644
index 00000000..7b871b02
--- /dev/null
+++ b/priv/translations/ca/LC_MESSAGES/symbols.po
@@ -0,0 +1,40 @@
+## This file is a PO Template file.
+##
+## `msgid`s here are often extracted from source code.
+## Add new translations manually only if they're dynamic
+## translations that can't be statically extracted.
+##
+## Run `mix gettext.extract` to bring this file up to
+## date. Leave `msgstr`s empty as changing them here as no
+## effect: edit them in PO (`.po`) files instead.
+msgid ""
+msgstr ""
+"Language: ca\n"
+
+#: lib/l10n/translator.ex:379
+msgid "+"
+msgstr "+"
+
+#: lib/l10n/translator.ex:375
+msgid ","
+msgstr ","
+
+#: lib/l10n/translator.ex:381
+msgid "-"
+msgstr "-"
+
+#: lib/l10n/translator.ex:373
+msgid "."
+msgstr "."
+
+#: lib/l10n/translator.ex:385
+msgid ":"
+msgstr ":"
+
+#: lib/l10n/translator.ex:377
+msgid ";"
+msgstr ";"
+
+#: lib/l10n/translator.ex:383
+msgid "E"
+msgstr "E"
diff --git a/priv/translations/ca/LC_MESSAGES/units.po b/priv/translations/ca/LC_MESSAGES/units.po
new file mode 100644
index 00000000..bc1ef694
--- /dev/null
+++ b/priv/translations/ca/LC_MESSAGES/units.po
@@ -0,0 +1,72 @@
+## This file is a PO Template file.
+##
+## `msgid`s here are often extracted from source code.
+## Add new translations manually only if they're dynamic
+## translations that can't be statically extracted.
+##
+## Run `mix gettext.extract` to bring this file up to
+## date. Leave `msgstr`s empty as changing them here as no
+## effect: edit them in PO (`.po`) files instead.
+msgid ""
+msgstr ""
+"Language: ca\n"
+
+#: lib/l10n/translator.ex:261
+msgid "%{count} day"
+msgid_plural "%{count} days"
+msgstr[0] "%{count} dia"
+msgstr[1] "%{count} díes"
+
+#: lib/l10n/translator.ex:260
+msgid "%{count} hour"
+msgid_plural "%{count} hours"
+msgstr[0] "%{count} hora"
+msgstr[1] "%{count} hores"
+
+#: lib/l10n/translator.ex:256
+msgid "%{count} microsecond"
+msgid_plural "%{count} microseconds"
+msgstr[0] "%{count} microsegon"
+msgstr[1] "%{count} microsegons"
+
+#: lib/l10n/translator.ex:257
+msgid "%{count} millisecond"
+msgid_plural "%{count} milliseconds"
+msgstr[0] "%{count} milisegon"
+msgstr[1] "%{count} milisegons"
+
+#: lib/l10n/translator.ex:259
+msgid "%{count} minute"
+msgid_plural "%{count} minutes"
+msgstr[0] "%{count} minut"
+msgstr[1] "%{count} minuts"
+
+#: lib/l10n/translator.ex:263
+msgid "%{count} month"
+msgid_plural "%{count} months"
+msgstr[0] "%{count} mes"
+msgstr[1] "%{count} mesos"
+
+#: lib/l10n/translator.ex:255
+msgid "%{count} nanosecond"
+msgid_plural "%{count} nanoseconds"
+msgstr[0] "%{count} nanosegon"
+msgstr[1] "%{count} nanosegons"
+
+#: lib/l10n/translator.ex:258
+msgid "%{count} second"
+msgid_plural "%{count} seconds"
+msgstr[0] "%{count} segon"
+msgstr[1] "%{count} segons"
+
+#: lib/l10n/translator.ex:262
+msgid "%{count} week"
+msgid_plural "%{count} weeks"
+msgstr[0] "%{count} setmana"
+msgstr[1] "%{count} setmanes"
+
+#: lib/l10n/translator.ex:264
+msgid "%{count} year"
+msgid_plural "%{count} years"
+msgstr[0] "%{count} any"
+msgstr[1] "%{count} anys"
diff --git a/priv/translations/ca/LC_MESSAGES/weekdays.po b/priv/translations/ca/LC_MESSAGES/weekdays.po
new file mode 100644
index 00000000..ef362522
--- /dev/null
+++ b/priv/translations/ca/LC_MESSAGES/weekdays.po
@@ -0,0 +1,68 @@
+## This file is a PO Template file.
+##
+## `msgid`s here are often extracted from source code.
+## Add new translations manually only if they're dynamic
+## translations that can't be statically extracted.
+##
+## Run `mix gettext.extract` to bring this file up to
+## date. Leave `msgstr`s empty as changing them here as no
+## effect: edit them in PO (`.po`) files instead.
+msgid ""
+msgstr ""
+"Language: es\n"
+
+#: lib/l10n/translator.ex:275
+msgid "Fri"
+msgstr "Dv"
+
+#: lib/l10n/translator.ex:283
+msgid "Friday"
+msgstr "Divendres"
+
+#: lib/l10n/translator.ex:271
+msgid "Mon"
+msgstr "Dl"
+
+#: lib/l10n/translator.ex:279
+msgid "Monday"
+msgstr "Dilluns"
+
+#: lib/l10n/translator.ex:276
+msgid "Sat"
+msgstr "Ds"
+
+#: lib/l10n/translator.ex:284
+msgid "Saturday"
+msgstr "Dissabte"
+
+#: lib/l10n/translator.ex:277
+msgid "Sun"
+msgstr "Dg"
+
+#: lib/l10n/translator.ex:285
+msgid "Sunday"
+msgstr "Diumenge"
+
+#: lib/l10n/translator.ex:274
+msgid "Thu"
+msgstr "Dj"
+
+#: lib/l10n/translator.ex:282
+msgid "Thursday"
+msgstr "Dijous"
+
+#: lib/l10n/translator.ex:272
+msgid "Tue"
+msgstr "Dm"
+
+#: lib/l10n/translator.ex:280
+msgid "Tuesday"
+msgstr "Dimarts"
+
+#: lib/l10n/translator.ex:273
+msgid "Wed"
+msgstr "Dx"
+
+#: lib/l10n/translator.ex:281
+msgid "Wednesday"
+msgstr "Dimecres"