"Mon, 26 Jan 1970 14:15:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700126
Only TIME
14:15:17
General datetime
1970-01-26 14:15:17Z
For Database
1970-01-26 14:15:17
For HTTP1.1
Mon, 26 Jan 1970 14:15:17 GMT