"Thu, 01 Jan 1970 09:18:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700101
Only TIME
09:18:10
General datetime
1970-01-01 09:18:10Z
For Database
1970-01-01 09:18:10
For HTTP1.1
Thu, 01 Jan 1970 09:18:10 GMT