"Wed, 28 Jan 1970 21:46:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700128
Only TIME
21:46:35
General datetime
1970-01-28 21:46:35Z
For Database
1970-01-28 21:46:35
For HTTP1.1
Wed, 28 Jan 1970 21:46:35 GMT