"Sun, 15 Sep 2024 13:43:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
13:43:56
General datetime
2024-09-15 13:43:56Z
For Database
2024-09-15 13:43:56
For HTTP1.1
Sun, 15 Sep 2024 13:43:56 GMT