"Mon, 12 Jan 1970 22:05:53"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700112
Only TIME
22:05:53
General datetime
1970-01-12 22:05:53Z
For Database
1970-01-12 22:05:53
For HTTP1.1
Mon, 12 Jan 1970 22:05:53 GMT