"Sat, 21 Sep 2024 03:45:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
03:45:45
General datetime
2024-09-21 03:45:45Z
For Database
2024-09-21 03:45:45
For HTTP1.1
Sat, 21 Sep 2024 03:45:45 GMT