"Sun, 15 Sep 2024 17:08:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
17:08:11
General datetime
2024-09-15 17:08:11Z
For Database
2024-09-15 17:08:11
For HTTP1.1
Sun, 15 Sep 2024 17:08:11 GMT