"Thu, 29 Jan 1970 05:32:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700129
Only TIME
05:32:42
General datetime
1970-01-29 05:32:42Z
For Database
1970-01-29 05:32:42
For HTTP1.1
Thu, 29 Jan 1970 05:32:42 GMT