"Sun, 15 Sep 2024 06:39:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
06:39:12
General datetime
2024-09-15 06:39:12Z
For Database
2024-09-15 06:39:12
For HTTP1.1
Sun, 15 Sep 2024 06:39:12 GMT