mktime is a software that convert between UNIX times and human readable date.
This is a tiny tool that just converts between UNIX epoch time and human readable dates. The argument is a single date, either a UNIX time value (in decimal or hex) or a human-readable date in any format supported by Time::ParseDate. The output is the date in hex, decimal, local time, and GMT.
$ mktime April 10, 2007 GMT
0x461AD380 => 1176163200 => Mon Apr 9 19:00:00 2007
=> Tue Apr 10 00:00:00 2007 GMT