"Mon, 23 Dec 2024 14:15:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241223
Only TIME
14:15:19
General datetime
2024-12-23 14:15:19Z
For Database
2024-12-23 14:15:19
For HTTP1.1
Mon, 23 Dec 2024 14:15:19 GMT