"Sun, 29 Sep 2024 21:12:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240929
Only TIME
21:12:15
General datetime
2024-09-29 21:12:15Z
For Database
2024-09-29 21:12:15
For HTTP1.1
Sun, 29 Sep 2024 21:12:15 GMT