"Sun, 15 Sep 2024 03:04:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
03:04:15
General datetime
2024-09-15 03:04:15Z
For Database
2024-09-15 03:04:15
For HTTP1.1
Sun, 15 Sep 2024 03:04:15 GMT