Extensive Date Formats

Get a DateString object with a common date format.

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DateString[]

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Get a date using the ISO-8601 date-time format.

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DateString["ISODateTime"]

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Interpret a date string as an ISO-8601 ordinal-date format.

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DateObject[{"2012-184", {"ISOOrdinalDate"}}]

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Get a DateObject expression with the ISO-8601 week-date format.

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DateObject[DateFormat -> "ISOWeekDate"]

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Make a date object with a custom date format.

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DateObject[{2014, 8, 4}, DateFormat -> {"DayName", " ", "MonthName", " ", "Day", ", ", "YearRomanNumeral"}]

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Dozens of different date format elements are available.

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flist = {"Date", "DateShort", "Time", "DateTime", "DateTimeShort", "ISODate", "ISOWeekDate", "ISOOrdinalDate", "ISODateTime", "ADBC", "CEBCE", "Year", "YearShort", "ISOYear", "YearRomanNumeral", "YearUnsigned", "QuarterName", "QuarterNameShort", "Quarter", "MonthName", "MonthNameShort", "MonthNameInitial", "Month", "MonthShort", "MonthRomanNumeral", "MonthRomanNumeralLowerCase", "Week", "WeekShort", "DayName", "DayNameShort", "DayNameInitial", "ISOWeekDay", "Day", "DayShort", "ISOYearDay", "ISOYearDayShort", "Hour", "Hour12", "Hour24", "HourShort", "Hour12Short", "Hour24Short", "AMPM", "AMPMLowerCase", "TimeZoneGMTRelative", "ISOTimeZOne", "TimeZoneName", "TimeZoneNameShort", "Minute", "MinuteShort", "Second", "SecondShort", "SecondExact", "Millisecond", "MillisecondShort"}; Rasterize[ Grid[Map[Pane[ Style[# /. Last[flist] -> "Custom", ScriptLevel -> 0], {300}] &, Join[{{"Date String Format", DateObject[{2016, 2, 9}]}}, Transpose[{flist, Map[DateString[{2016, 2, 9, 14, 8, 4.2301}, #] &, flist]}]], {2}], Dividers -> All, Spacings -> {2, 2}, Background -> {None, {{None, GrayLevel[.9]}}, {{1, 1} -> Hue[.6, .4, 1], {1, 2} -> Hue[.6, .4, 1]}}, BaseStyle -> {FontFamily -> Times, FontSize -> 13}] // TraditionalForm, ImageResolution -> 144, RasterSize -> 600, ImageSize -> 300]

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