"Sat, 21 Sep 2024 23:54:52"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
23:54:52
General datetime
2024-09-21 23:54:52Z
For Database
2024-09-21 23:54:52
For HTTP1.1
Sat, 21 Sep 2024 23:54:52 GMT