"Sun, 15 Sep 2024 02:09:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
02:09:45
General datetime
2024-09-15 02:09:45Z
For Database
2024-09-15 02:09:45
For HTTP1.1
Sun, 15 Sep 2024 02:09:45 GMT