"Thu, 01 Jan 1970 11:06:48"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700101
Only TIME
11:06:48
General datetime
1970-01-01 11:06:48Z
For Database
1970-01-01 11:06:48
For HTTP1.1
Thu, 01 Jan 1970 11:06:48 GMT