- [checkdate](/functions/checkdate) - [date](/functions/date) - [date_default_timezone_get](/functions/date_default_timezone_get) - [date_default_timezone_set](/functions/date_default_timezone_set) - [date_parse](/functions/date_parse) - [getdate](/functions/getdate) - [gettimeofday](/functions/gettimeofday) - [gmdate](/functions/gmdate) - [gmmktime](/functions/gmmktime) - [gmstrftime](/functions/gmstrftime) - [idate](/functions/idate) - [localtime](/functions/localtime) - [microtime](/functions/microtime) - [mktime](/functions/mktime) - [strftime](/functions/strftime) - [strptime](/functions/strptime) - [strtotime](/functions/strtotime) - [time](/functions/time) - [timezone_abbreviations_list](/functions/timezone_abbreviations_list) - [timezone_identifiers_list](/functions/timezone_identifiers_list)