"Fri, 23 Jan 1970 11:05:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700123
Only TIME
11:05:01
General datetime
1970-01-23 11:05:01Z
For Database
1970-01-23 11:05:01
For HTTP1.1
Fri, 23 Jan 1970 11:05:01 GMT