"Thu, 08 Jan 1970 07:48:31"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700108
Only TIME
07:48:31
General datetime
1970-01-08 07:48:31Z
For Database
1970-01-08 07:48:31
For HTTP1.1
Thu, 08 Jan 1970 07:48:31 GMT