Template:Which calendar

Template documentation[view] [edit] [history] [purge]

Usage

The {{Which calendar}} template is a variant of {{Clarify}} to be used specifically when the clarification that is needed is the calendar in which a particular date is expressed.

At various times in modern history, multiple calendars were in use at the same time. Therefore, in an article on Russian history, a date such as "March 1, 1881" may be ambiguous: it might mean March 1 [O.S. March 13] 1881, or it might mean February 17 [O.S. March 1] 1881.

You may use either of the following formats:

{{which calendar|{{subst:DATE}}}}

or

{{which calendar|date=December 2025}}

This template will place articles into Category:Articles containing ambiguous dates.

To fix the issue, use the {{OldStyleDate}} template to clarify the meaning of the date:

{{OldStyleDate|March 1|1881|March 13}}

which produces

March 1 [O.S. March 13] 1881

TemplateData

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:Which calendar in articles based on its TemplateData.

TemplateData for Which calendar

For tagging ambiguous dates which might plausibly be interpreted differently according to multiple calendars in use at the time.

Template parameters

This template prefers inline formatting of parameters.

Parameter		Description	Type	Status
Link target	link	Change what "which calendar?" text links to Default MOS:OSNS	Page name	optional
Month and year	date	Month and year of tagging; e.g., 'January 2013', but not 'jan13' Auto value {{subst:CURRENTMONTHNAME}} {{subst:CURRENTYEAR}}	String	suggested

Redirects

• {{What calendar}}
• {{What calendar?}}
• {{Which calendar?}}

See also

• {{Clarify}}
• {{OldStyleDate}}
• {{OldStyleDateDY}}
• {{OldStyleDateNY}}
• {{Which}}

The above documentation is transcluded from Template:Which calendar/doc. (edit | history)
Editors can experiment in this template's sandbox (create | mirror) and testcases (create) pages.
Add categories to the /doc subpage. Subpages of this template.