"Sun, 15 Sep 2024 19:49:50"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
19:49:50
General datetime
2024-09-15 19:49:50Z
For Database
2024-09-15 19:49:50
For HTTP1.1
Sun, 15 Sep 2024 19:49:50 GMT