"Mon, 16 Sep 2024 18:55:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240916
Only TIME
18:55:21
General datetime
2024-09-16 18:55:21Z
For Database
2024-09-16 18:55:21
For HTTP1.1
Mon, 16 Sep 2024 18:55:21 GMT