"Mon, 30 Mar 1970 00:53:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700330
Only TIME
00:53:20
General datetime
1970-03-30 00:53:20Z
For Database
1970-03-30 00:53:20
For HTTP1.1
Mon, 30 Mar 1970 00:53:20 GMT