"Sun, 29 Sep 2024 20:21:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240929
Only TIME
20:21:39
General datetime
2024-09-29 20:21:39Z
For Database
2024-09-29 20:21:39
For HTTP1.1
Sun, 29 Sep 2024 20:21:39 GMT