"Mon, 09 Dec 2024 10:40:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
10:40:12
General datetime
2024-12-09 10:40:12Z
For Database
2024-12-09 10:40:12
For HTTP1.1
Mon, 09 Dec 2024 10:40:12 GMT