"Fri, 30 Jan 1970 23:30:49"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700130
Only TIME
23:30:49
General datetime
1970-01-30 23:30:49Z
For Database
1970-01-30 23:30:49
For HTTP1.1
Fri, 30 Jan 1970 23:30:49 GMT