"Thu, 08 Jan 1970 11:21:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700108
Only TIME
11:21:16
General datetime
1970-01-08 11:21:16Z
For Database
1970-01-08 11:21:16
For HTTP1.1
Thu, 08 Jan 1970 11:21:16 GMT