"Thu, 22 Jan 1970 01:27:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700122
Only TIME
01:27:55
General datetime
1970-01-22 01:27:55Z
For Database
1970-01-22 01:27:55
For HTTP1.1
Thu, 22 Jan 1970 01:27:55 GMT