(PHP 5, PHP 7) Format a local time/date as integer

(PHP 5 >= 5.3.0, PHP 7) Subtracts an amount of days, months, years, hours, minutes and seconds from a DateTime

(PHP 4, PHP 5, PHP 7) Format a local time/date according to locale settings

(PHP 4, PHP 5, PHP 7) Converts a Julian Day Count to a Julian Calendar Date

(PHP 5 >= 5.2.0, PHP 7) Alias of

(PHP 5 >= 5.2.0, PHP 7) Returns associative array with detailed info about given date

(PHP 4, PHP 5, PHP 7) Get number of days after March 21 on which Easter falls for a given year

(PHP 5 >= 5.3.0, PHP 7) Gets the Unix timestamp

(PHP 5 >= 5.2.0, PHP 7) Alias of

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Converts from a supported calendar to Julian Day Count