"Wed, 27 May 1970 07:11:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700527
Only TIME
07:11:25
General datetime
1970-05-27 07:11:25Z
For Database
1970-05-27 07:11:25
For HTTP1.1
Wed, 27 May 1970 07:11:25 GMT