MediaWiki:Api-help-datatype-expiry
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Expiry values may be relative (e.g. 5 months or 2 weeks) or absolute (e.g. 2014-09-18T12:34:56Z). For no expiry, use infinite, indefinite, infinity or never.
Note: You are currently viewing documentation for Moodle 3.1. Up-to-date documentation for the latest stable version of Moodle is probably available here: Api-help-datatype-expiry.
Expiry values may be relative (e.g. 5 months or 2 weeks) or absolute (e.g. 2014-09-18T12:34:56Z). For no expiry, use infinite, indefinite, infinity or never.