"Thu, 01 Jan 1970 11:56:27"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700101
Only TIME
11:56:27
General datetime
1970-01-01 11:56:27Z
For Database
1970-01-01 11:56:27
For HTTP1.1
Thu, 01 Jan 1970 11:56:27 GMT