"Mon, 23 Dec 2024 17:15:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241223
Only TIME
17:15:09
General datetime
2024-12-23 17:15:09Z
For Database
2024-12-23 17:15:09
For HTTP1.1
Mon, 23 Dec 2024 17:15:09 GMT