"Mon, 09 Dec 2024 13:22:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241209
Only TIME
13:22:21
General datetime
2024-12-09 13:22:21Z
For Database
2024-12-09 13:22:21
For HTTP1.1
Mon, 09 Dec 2024 13:22:21 GMT