"Fri, 06 Feb 1970 22:41:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700206
Only TIME
22:41:15
General datetime
1970-02-06 22:41:15Z
For Database
1970-02-06 22:41:15
For HTTP1.1
Fri, 06 Feb 1970 22:41:15 GMT