Template:ISOdate/doc

Example of where the template provides convenience

 * Template:Creator passes on the date of birth and death to e.g. Template:Creator/de and then to Template:Creator/layout. This is done through only two parameters birthdate and deathdate. The last-mentioned template calls this template ISODate to extract the 6 date components, and the time components, if any.

Test cases
en:Template:ISOdate