"Mon, 23 Dec 2024 21:18:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241223
Only TIME
21:18:12
General datetime
2024-12-23 21:18:12Z
For Database
2024-12-23 21:18:12
For HTTP1.1
Mon, 23 Dec 2024 21:18:12 GMT