"Mon, 16 Sep 2024 15:15:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240916
Only TIME
15:15:18
General datetime
2024-09-16 15:15:18Z
For Database
2024-09-16 15:15:18
For HTTP1.1
Mon, 16 Sep 2024 15:15:18 GMT