"Sun, 05 Apr 1970 07:11:46"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700405
Only TIME
07:11:46
General datetime
1970-04-05 07:11:46Z
For Database
1970-04-05 07:11:46
For HTTP1.1
Sun, 05 Apr 1970 07:11:46 GMT