"Mon, 09 Mar 1970 00:53:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700309
Only TIME
00:53:17
General datetime
1970-03-09 00:53:17Z
For Database
1970-03-09 00:53:17
For HTTP1.1
Mon, 09 Mar 1970 00:53:17 GMT