"Sun, 15 Sep 2024 04:21:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
04:21:42
General datetime
2024-09-15 04:21:42Z
For Database
2024-09-15 04:21:42
For HTTP1.1
Sun, 15 Sep 2024 04:21:42 GMT