"Sun, 15 Sep 2024 15:25:47"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
15:25:47
General datetime
2024-09-15 15:25:47Z
For Database
2024-09-15 15:25:47
For HTTP1.1
Sun, 15 Sep 2024 15:25:47 GMT