"Thu, 19 Feb 1970 07:51:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700219
Only TIME
07:51:03
General datetime
1970-02-19 07:51:03Z
For Database
1970-02-19 07:51:03
For HTTP1.1
Thu, 19 Feb 1970 07:51:03 GMT