"Mon, 23 Sep 2024 18:20:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240923
Only TIME
18:20:12
General datetime
2024-09-23 18:20:12Z
For Database
2024-09-23 18:20:12
For HTTP1.1
Mon, 23 Sep 2024 18:20:12 GMT