"Wed, 14 Jan 1970 11:29:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700114
Only TIME
11:29:59
General datetime
1970-01-14 11:29:59Z
For Database
1970-01-14 11:29:59
For HTTP1.1
Wed, 14 Jan 1970 11:29:59 GMT