"Mon, 23 Dec 2024 18:18:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241223
Only TIME
18:18:56
General datetime
2024-12-23 18:18:56Z
For Database
2024-12-23 18:18:56
For HTTP1.1
Mon, 23 Dec 2024 18:18:56 GMT