"Wed, 07 Jan 1970 15:06:32"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700107
Only TIME
15:06:32
General datetime
1970-01-07 15:06:32Z
For Database
1970-01-07 15:06:32
For HTTP1.1
Wed, 07 Jan 1970 15:06:32 GMT