"Mon, 16 Dec 2024 09:15:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241216
Only TIME
09:15:45
General datetime
2024-12-16 09:15:45Z
For Database
2024-12-16 09:15:45
For HTTP1.1
Mon, 16 Dec 2024 09:15:45 GMT