"Sun, 15 Sep 2024 14:40:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
14:40:57
General datetime
2024-09-15 14:40:57Z
For Database
2024-09-15 14:40:57
For HTTP1.1
Sun, 15 Sep 2024 14:40:57 GMT