(PHP 5 >= 5.3.0, PHP 7) Alias of

(PHP 5 >= 5.3.0, PHP 7) Formats the interval

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

(PHP 5 >= 5.3.0, PHP 7) Alias of

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

(PHP 4, PHP 5, PHP 7) Parse about any English textual datetime description into a Unix timestamp

(PHP 4, PHP 5, PHP 7) Get date/time information

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

(PHP 4, PHP 5, PHP 7) Convert Julian Day to Unix timestamp

(PHP 4, PHP 5, PHP 7) Return current Unix timestamp with microseconds