"Sat, 21 Sep 2024 18:33:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
18:33:57
General datetime
2024-09-21 18:33:57Z
For Database
2024-09-21 18:33:57
For HTTP1.1
Sat, 21 Sep 2024 18:33:57 GMT