Dts (date time sorting) is used to correctly sort and display dates in a sortable table (see Help:Sorting).

What it solvesসম্পাদনা কৰক

Dates in their customary formats, if simply treated as alphanumeric text strings, sort in nonsensical ways:

  • 1 August 2013 sorts alphanumerically before 5 March 1967, because 1 is less than 5;
  • February 5, 1922 sorts alphanumerically before January 3, 1922, because F comes before J.

Use of the YYYY-MM-DD format would solve this problem, but with minor exceptions that format is not used in articles (see WP:DATEFORMAT).

This template automatically attaches a "hidden key" to dates, causing them to sort correctly while still being displayed in one of the customary display formats such as February 5, 1922 or 5 Feb 1922.

Parametersসম্পাদনা কৰক

Datesসম্পাদনা কৰক

The year, month and day can either be entered separately or as a single date.
{{dts|year|month|day|BC}} {{dts|date}}
  • 1st parameter – Year (optional if month is given)
    • Positive number (1 to 999,999,999,999) represent years AD or BC (dependant on the fourth parameter).
    • Negative numbers (−1 to −999,999,999,999) represent years BC (without the fourth parameter).
    • Year numbers must not contain commas or other formatting.
  • 2nd parameter – Month (optional if the day is not given either)
    • Full month name – e.g. February
    • Abbreviated month name – e.g. Feb
    • Month number – (either zero-padded or not) e.g. 2 or 02
  • 3rd parameter – Day (optional)
    • Day number – (either zero-padded or not) e.g. 7 or 07
  • 4th parameter – (optional)
    • May be BC, AD, BCE or CE
    • Used with a positive year number
  • 1st parameter – the full date
    • By default YYYY-MM-DD format becomes month-day-year format while other formats remain in the order they are input.
    • Abbreviated months are accepted and are abbreviated in the output.
    • Capitalisation and comma mistakes are corrected.
    • A single number is interpreted as a year, otherwise the date is parsed by the module. The following formats are accepted:
      • YYYY-MM-DD
      • DD-MM-YYYY
      • DD Month YYYY
      • Month DD, YYYY
      • YYYY-MM
      • DD Month
      • Month DD
      • Month YYYY
      • YYYY
      • Month
    • Day and month numbers may be 1 or 2 digits, and year numbers may only be 3 or 4 digits. If you need to input a number less than 1000, use leading zeroes (e.g. "0700").
    • BC years can only be parsed if the date is only the year number.
    • If you need to include the day or month for BC years or years greater than 9999, you must use separate parameters for year, month and day.

input style input code hidden sort key visible output
{{dts|year}} {{dts|1893}}
{{dts|month}} {{dts|Oct}}
{{dts|month year}} {{dts|February 1767}}
{{dts|day month year}} {{dts|12 Aug 1987}}
{{dts|month day, year}} {{dts|July 1, 1867}}
{{dts|day month}} {{dts|25 October}}
{{dts|month day}} {{dts|Jan 1}}
{{dts|YYYY-MM-DD}} {{dts|2014-12-09}}
{{dts|year|month}} {{dts|1990|10}}
{{dts|year|month|day}} {{dts|2024|Jun|12}}
{{dts|year|month|day|era}} {{dts|44|3|15|BC}}
{{dts||month}} {{dts||May}}
{{dts||month|day}} {{dts||Sep|12}}

Formattingসম্পাদনা কৰক

Using format produces a format that depends on, but is not necessarily equal to the format of the supplied date. The format parameter can take nine values.

value function input code hidden sort key visible output
  format depends on the input {{dts|26 Jan 1788}}
{{dts|March 12, 1557}}
dmy displays the date in day-month-year format {{dts|Sep 13, 1888|format=dmy}}
dm displays only the day and month in day-month format {{dts|Feb 26, 1788|format=dm}}
mdy displays the date in month-day-year format {{dts|August 31, 1901|format=mdy}}
md displays only the day and month in month-day format {{dts|26 Jun 1988|format=md}}
my displays only the month and year in month-year format {{dts|16 November 1488|format=my}}
d displays only the day {{dts|6 July 1666|format=d}}
m displays only the month {{dts|1980-02-12|format=m}}
y displays only the year {{dts|-26|Jan|18|format=y}}
hide hides the date {{dts|15 October 1800|format=hide}}

Abbreviationসম্পাদনা কৰক

There are two ways of abbreviating the month name.

  1. Directly input an abbreviated month name.
  2. Use the abbr=on parameter.
abbreviation method input code hidden sort key visible output
none {{dts|2000-01-01}}
{{dts|1 January 2000}}
abbreviated input {{dts|1 Jan 2000}}
abbr=on {{dts|1 January 2000|abbr=on}}

Additional sort keyসম্পাদনা কৰক

In case two dates in a table are identical they may be ordered using the addkey parameter.

input code hidden sort key visible output

Wrappingসম্পাদনা কৰক

To turn off the suppression of word wraps, use the nowrap=off parameter.

Notesসম্পাদনা কৰক

Sorting for incomplete datesসম্পাদনা কৰক

Whole months or years
A whole year or month (and year) is sorted according to its first day.
Missing years
If the year is not specified, the date will be sorted as if the year were the current year.
Blank dates
For no date input at all, the maximum possible sort key is used, so the entry will sort last.

Error handlingসম্পাদনা কৰক

Entering an invalid date format will (generally) produce an error message such as the one below.

Errors are tracked in Category:Dts templates with errors.

Calendar choiceসম্পাদনা কৰক

The template is not capable of distinguishing Julian and Gregorian calendar dates. Also, it is not capable of taking a date in one calendar as input and outputting a date in the other calendar. Thus, to insure proper sorting, editors must either use one calendar for all dates, or pick a specific changeover date (for example, deciding that 4 October 1582 is Julian and all later dates are Gregorian); this would be done on an article-by article basis. Editors are also responsible for explaining to the reader whether the visible dates are Julian or Gregorian, if there is any possibility of confusion.

Linkingসম্পাদনা কৰক

The template formerly linked dates automatically, with link=off used to suppress linking. In accordance with current guidelines linking of dates is no longer supported and instances of link=off should be removed. Transclusions using the |link= parameter are tracked in Category:Dts templates with deprecated parameters.

See alsoসম্পাদনা কৰক

  • m:Template:dts (backlinks, edit), since on Meta e.g. 09999 9999 induces numeric sort mode, "&" is prefixed to force string sort mode.
  • {{sort}}, sorting by a specified key (also good for complicated numbers, e.g. scientific notation)
  • {{sortname}}, full name sorting (using "last name, first name" as default sort key)
  • {{tts}}, for sorting times in result tables of athletic events (only needed in certain cases - see template documentation)
  • {{mss}}, for sorting times in tables of eclipses
  • {{nts}}, for numbers