"Sat, 21 Sep 2024 09:21:46"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
09:21:46
General datetime
2024-09-21 09:21:46Z
For Database
2024-09-21 09:21:46
For HTTP1.1
Sat, 21 Sep 2024 09:21:46 GMT