Linux: Date #time 10m

linux/system/date.rst

@@ -8,10 +8,60 @@ Paths
 * ``/etc/localtime``
 
 
+Date Formatting
+---------------
+.. csv-table:: Date and time parsing parameters
+    :widths: 5, 35, 60
+    :header: "Directive", "Example", "Meaning"
+
+    "``%a``", "Sun, Mon, ..., Sat", "Weekday as locale's abbreviated name"
+    "``%A``", "Sunday, Monday, ..., Saturday (en_US)", "Weekday as locale's full name"
+    "``%w``", "0, 1, ..., 6", "Weekday as a decimal number, where 0 is Sunday and 6 is Saturday"
+    "``%d``", "01, 02, ..., 31", "Day of the month as a zero-padded decimal number"
+    "``%b``", "Jan, Feb, ..., Dec (en_US)", "Month as locale's abbreviated name"
+    "``%B``", "January, February, ..., December (en_US)", "Month as locale's full name"
+    "``%m``", "01, 02, ..., 12", "Month as a zero-padded decimal number"
+    "``%y``", "00, 01, ..., 99", "Year without century as a zero-padded decimal number"
+    "``%Y``", "0001, 0002, ..., 2013, 2014, ..., 9998, 9999", "Year with century as a decimal number"
+    "``%H``", "00, 01, ..., 23", "Hour (24-hour clock) as a zero-padded decimal number"
+    "``%I``", "01, 02, ..., 12", "Hour (12-hour clock) as a zero-padded decimal number"
+    "``%p``", "AM, PM (en_US)", "Locale's equivalent of either AM or PM"
+    "``%M``", "00, 01, ..., 59", "Minute as a zero-padded decimal number"
+    "``%S``", "00, 01, ..., 59", "Second as a zero-padded decimal number"
+    "``%f``", "000000, 000001, ..., 999999", "Microsecond as a decimal number, zero-padded on the left"
+    "``%z``", "(empty), +0000, -0400, +1030", "UTC offset in the form +HHMM or -HHMM (empty string if the object is naive)"
+    "``%Z``", "(empty), UTC, EST, CST", "Time zone name (empty string if the object is naive)"
+    "``%j``", "001, 002, ..., 366", "Day of the year as a zero-padded decimal number"
+    "``%U``", "00, 01, ..., 53", "Week number of the year (Sunday as the first day of the week) as a zero padded decimal number. All days in a new year preceding the first Sunday are considered to be in week 0"
+    "``%W``", "00, 01, ..., 53", "Week number of the year (Monday as the first day of the week) as a decimal number. All days in a new year preceding the first Monday are considered to be in week 0"
+    "``%c``", "Tue Aug 16 21:30:00 1988 (en_US)", "Locale's appropriate date and time representation"
+    "``%x``", "08/16/1988 (en_US); 16.08.1988 (de_DE)", "Locale's appropriate date representation"
+    "``%X``", "21:30:00", "Locale's appropriate time representation"
+    "``%%``", "%", "A literal ``%`` character"
+    "``%G``", "0001, 0002, ..., 2013, 2014, ..., 9998, 9999", "ISO 8601 year with century representing the year that contains the greater part of the ISO week (``%V``)"
+    "``%u``", "1, 2, ..., 7", "ISO 8601 weekday as a decimal number where 1 is Monday"
+    "``%V``", "01, 02, ..., 53", "ISO 8601 week as a decimal number with Monday as the first day of the week. Week 01 is the week containing Jan 4"
+
+.. csv-table:: Leading Zero
+    :widths: 55, 15, 15, 15
+    :header: "Meaning", "With", "Without"
+
+    "day",                          ``%d``, ``%-d``
+    "hour 24h",                     ``%H``, ``%-H``
+    "hour 12h",                     ``%I``, ``%-I``
+    "day of a year",                ``%j``, ``%-j``
+    "month",                        ``%m``, ``%-m``
+    "minute",                       ``%M``, ``%-M``
+    "second",                       ``%S``, ``%-S``
+    "week number (Sunday first)",   ``%U``, ``%-U``
+    "week number (Monday first)",   ``%W``, ``%-W``
+    "weekday (Sunday first)",       ``%w``, ``%-w``
+    "year short",                   ``%y``, ``%-y``
+    "year long",                    ``%Y``, ``%-Y``
+
+
 Date
 ----
-* https://python.astrotech.io/intermediate/datetime/format.html#parameters
-
 .. code-block:: console
 
     $ date -I