"Wed, 07 Jan 1970 12:30:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700107
Only TIME
12:30:04
General datetime
1970-01-07 12:30:04Z
For Database
1970-01-07 12:30:04
For HTTP1.1
Wed, 07 Jan 1970 12:30:04 GMT