MediaWiki:Apihelp-echomarkseen-param-timestampFormat
З пляцоўкі База ведаў UNIJA
Timestamp format to use for output, 'ISO_8601' or 'MW'. 'MW' is deprecated here, so all clients should switch to 'ISO_8601'. This parameter will be removed, and 'ISO_8601' will become the only output format.
