"Tue, 31 Mar 1970 00:53:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700331
Only TIME
00:53:19
General datetime
1970-03-31 00:53:19Z
For Database
1970-03-31 00:53:19
For HTTP1.1
Tue, 31 Mar 1970 00:53:19 GMT