"Sun, 11 Jan 1970 17:10:26"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700111
Only TIME
17:10:26
General datetime
1970-01-11 17:10:26Z
For Database
1970-01-11 17:10:26
For HTTP1.1
Sun, 11 Jan 1970 17:10:26 GMT