"Mon, 26 Jan 1970 11:05:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700126
Only TIME
11:05:02
General datetime
1970-01-26 11:05:02Z
For Database
1970-01-26 11:05:02
For HTTP1.1
Mon, 26 Jan 1970 11:05:02 GMT