"Mon, 23 Sep 2024 20:40:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240923
Only TIME
20:40:18
General datetime
2024-09-23 20:40:18Z
For Database
2024-09-23 20:40:18
For HTTP1.1
Mon, 23 Sep 2024 20:40:18 GMT