"Sun, 07 Jun 1970 07:11:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700607
Only TIME
07:11:17
General datetime
1970-06-07 07:11:17Z
For Database
1970-06-07 07:11:17
For HTTP1.1
Sun, 07 Jun 1970 07:11:17 GMT