"Mon, 09 Mar 1970 07:11:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700309
Only TIME
07:11:13
General datetime
1970-03-09 07:11:13Z
For Database
1970-03-09 07:11:13
For HTTP1.1
Mon, 09 Mar 1970 07:11:13 GMT