"Wed, 04 Feb 1970 09:22:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700204
Only TIME
09:22:15
General datetime
1970-02-04 09:22:15Z
For Database
1970-02-04 09:22:15
For HTTP1.1
Wed, 04 Feb 1970 09:22:15 GMT