"Mon, 09 Dec 2024 17:15:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
17:15:18
General datetime
2024-12-09 17:15:18Z
For Database
2024-12-09 17:15:18
For HTTP1.1
Mon, 09 Dec 2024 17:15:18 GMT