"Sun, 15 Sep 2024 02:16:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
02:16:36
General datetime
2024-09-15 02:16:36Z
For Database
2024-09-15 02:16:36
For HTTP1.1
Sun, 15 Sep 2024 02:16:36 GMT