"Sun, 11 Jan 1970 22:05:50"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700111
Only TIME
22:05:50
General datetime
1970-01-11 22:05:50Z
For Database
1970-01-11 22:05:50
For HTTP1.1
Sun, 11 Jan 1970 22:05:50 GMT