"Mon, 26 Jan 1970 02:16:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700126
Only TIME
02:16:55
General datetime
1970-01-26 02:16:55Z
For Database
1970-01-26 02:16:55
For HTTP1.1
Mon, 26 Jan 1970 02:16:55 GMT