"Wed, 07 Jan 1970 09:17:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700107
Only TIME
09:17:54
General datetime
1970-01-07 09:17:54Z
For Database
1970-01-07 09:17:54
For HTTP1.1
Wed, 07 Jan 1970 09:17:54 GMT