"Wed, 07 Jan 1970 18:16:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700107
Only TIME
18:16:10
General datetime
1970-01-07 18:16:10Z
For Database
1970-01-07 18:16:10
For HTTP1.1
Wed, 07 Jan 1970 18:16:10 GMT