"Sun, 15 Sep 2024 16:28:48"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
16:28:48
General datetime
2024-09-15 16:28:48Z
For Database
2024-09-15 16:28:48
For HTTP1.1
Sun, 15 Sep 2024 16:28:48 GMT