"Sun, 22 Feb 1970 07:12:41"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700222
Only TIME
07:12:41
General datetime
1970-02-22 07:12:41Z
For Database
1970-02-22 07:12:41
For HTTP1.1
Sun, 22 Feb 1970 07:12:41 GMT