"Tue, 03 Feb 1970 22:41:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700203
Only TIME
22:41:12
General datetime
1970-02-03 22:41:12Z
For Database
1970-02-03 22:41:12
For HTTP1.1
Tue, 03 Feb 1970 22:41:12 GMT