"Sun, 15 Sep 2024 16:21:46"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
16:21:46
General datetime
2024-09-15 16:21:46Z
For Database
2024-09-15 16:21:46
For HTTP1.1
Sun, 15 Sep 2024 16:21:46 GMT