"Sun, 20 Oct 2024 21:23:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241020
Only TIME
21:23:15
General datetime
2024-10-20 21:23:15Z
For Database
2024-10-20 21:23:15
For HTTP1.1
Sun, 20 Oct 2024 21:23:15 GMT