"Sat, 21 Sep 2024 13:48:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
13:48:01
General datetime
2024-09-21 13:48:01Z
For Database
2024-09-21 13:48:01
For HTTP1.1
Sat, 21 Sep 2024 13:48:01 GMT