Template:Is now: Difference between revisions
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Revision as of 05:18, 29 August 2021
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Usage
This template is intended to be used by other templates. It returns a "1" if the current time, as interpreted by {{#time: {{{format string|U}}} }} exactly matches any of the supplied times in the parameters |at1=, |at2=, and so on. Otherwise it returns a "0".
This is useful for recurring events, such as holidays, hours of the day, etc.
- Parameters
|format string=UFormat string to pass to {{#time:}}.|at1=,|at2=, etc. - strings to match|debug=- If set, then|format string=is printed. For debugging.
- Common format string parameter values. See mw:Help:Extension:ParserFunctions#.23time for further information.
-
|format string=M- 2-digit month of year. Returns 01 during January|format string=d- 2-digit day of month. Returns 01 on the 1st day of the month.|format string=w- Day of week. Returns 0 on Sunday|format string=M-d- 2-digit month, hyphen, 2-digit day. Returns 01-01 on January 1.|format string=xmn- Month as a number (Islamic calendar). Returns 1 during Muharram.|format string=xjn- Month as number (Hebrew calendar). Returns 1 during Nisan.|format string=H- Hour of the day (UTC).|format string=Defaults to U, which is "seconds since January 1 1970 00:00:00 UTC." This default is deliberately not useful to discourage the use of this template without specifying a format string.
- Recommended uses
- Displaying messages that only appear on certain, possibly non-consecutive days of the week, month, or year.
- Displaying messages that only appear during certain, possibly non-consecutive hours of the day.
- Demonstration (purge this page to update the result)
- Display whether it is the weekend (Saturday or Sunday) or a weekday (Monday through Friday) in the United States:
- {{#ifeq: {{Is now|format string=w|at1=0|at2=7}}|1|Enjoy the weekend|Another day, another dollar.}}
- yields
- Another day, another dollar.
- Limitations
- The "switch" from 0 to 1 happens only when the page this template is used on is updated or purged. If a page includes a template which calls this template, it is the page the reader sees, not the template which calls this template, which must be purged or updated.
- There is a hard-coded limit of 31
|atN=parameters, but this can be extended at any time.
- See also
- {{Age switch}}
- {{Compare dates}}
- {{If this year}} (wrapper)
- {{If this academic year}}
- {{If this semester}}