"Mon, 23 Dec 2024 17:20:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241223
Only TIME
17:20:15
General datetime
2024-12-23 17:20:15Z
For Database
2024-12-23 17:20:15
For HTTP1.1
Mon, 23 Dec 2024 17:20:15 GMT