"Sun, 15 Sep 2024 16:02:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
16:02:36
General datetime
2024-09-15 16:02:36Z
For Database
2024-09-15 16:02:36
For HTTP1.1
Sun, 15 Sep 2024 16:02:36 GMT