"Wed, 28 Jan 1970 03:26:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700128
Only TIME
03:26:23
General datetime
1970-01-28 03:26:23Z
For Database
1970-01-28 03:26:23
For HTTP1.1
Wed, 28 Jan 1970 03:26:23 GMT