"Sun, 22 Feb 1970 11:25:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700222
Only TIME
11:25:59
General datetime
1970-02-22 11:25:59Z
For Database
1970-02-22 11:25:59
For HTTP1.1
Sun, 22 Feb 1970 11:25:59 GMT