"Sat, 14 Sep 2024 21:40:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240914
Only TIME
21:40:02
General datetime
2024-09-14 21:40:02Z
For Database
2024-09-14 21:40:02
For HTTP1.1
Sat, 14 Sep 2024 21:40:02 GMT