"Thu, 08 Jan 1970 00:03:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700108
Only TIME
00:03:02
General datetime
1970-01-08 00:03:02Z
For Database
1970-01-08 00:03:02
For HTTP1.1
Thu, 08 Jan 1970 00:03:02 GMT