"Thu, 08 Jan 1970 14:28:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700108
Only TIME
14:28:02
General datetime
1970-01-08 14:28:02Z
For Database
1970-01-08 14:28:02
For HTTP1.1
Thu, 08 Jan 1970 14:28:02 GMT