$ctime

Returns total number of seconds elapsed since 00:00:00 GMT, January 1, 1970 based on your system time or on the time you have spezified.

$ctime
$ctime(text)

$ctime without properties is equivalent to $ctime(January 1 1970 00:00:00).

Example

$ctime(24/12/2004 12:00)

This will return 1103886000, as it is total number of seconds from January 1, 1970, 00:00 until December 24, 2004, 12:00.

See Also

$asctime returns the time and date in text format associated with the $ctime time value.