"Sun, 15 Sep 2024 15:14:52"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
15:14:52
General datetime
2024-09-15 15:14:52Z
For Database
2024-09-15 15:14:52
For HTTP1.1
Sun, 15 Sep 2024 15:14:52 GMT