"Mon, 02 Mar 1970 00:53:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700302
Only TIME
00:53:54
General datetime
1970-03-02 00:53:54Z
For Database
1970-03-02 00:53:54
For HTTP1.1
Mon, 02 Mar 1970 00:53:54 GMT