"Mon, 09 Dec 2024 10:21:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
10:21:11
General datetime
2024-12-09 10:21:11Z
For Database
2024-12-09 10:21:11
For HTTP1.1
Mon, 09 Dec 2024 10:21:11 GMT