"Sun, 01 Feb 1970 07:24:46"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700201
Only TIME
07:24:46
General datetime
1970-02-01 07:24:46Z
For Database
1970-02-01 07:24:46
For HTTP1.1
Sun, 01 Feb 1970 07:24:46 GMT