"Sun, 15 Sep 2024 04:48:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
04:48:36
General datetime
2024-09-15 04:48:36Z
For Database
2024-09-15 04:48:36
For HTTP1.1
Sun, 15 Sep 2024 04:48:36 GMT