"Wed, 04 Mar 1970 07:12:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700304
Only TIME
07:12:13
General datetime
1970-03-04 07:12:13Z
For Database
1970-03-04 07:12:13
For HTTP1.1
Wed, 04 Mar 1970 07:12:13 GMT