"Mon, 02 Mar 1970 07:12:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700302
Only TIME
07:12:02
General datetime
1970-03-02 07:12:02Z
For Database
1970-03-02 07:12:02
For HTTP1.1
Mon, 02 Mar 1970 07:12:02 GMT