"Mon, 23 Dec 2024 15:36:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241223
Only TIME
15:36:20
General datetime
2024-12-23 15:36:20Z
For Database
2024-12-23 15:36:20
For HTTP1.1
Mon, 23 Dec 2024 15:36:20 GMT