"Sun, 11 Jan 1970 11:02:24"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700111
Only TIME
11:02:24
General datetime
1970-01-11 11:02:24Z
For Database
1970-01-11 11:02:24
For HTTP1.1
Sun, 11 Jan 1970 11:02:24 GMT