"Sun, 20 Oct 2024 17:15:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241020
Only TIME
17:15:38
General datetime
2024-10-20 17:15:38Z
For Database
2024-10-20 17:15:38
For HTTP1.1
Sun, 20 Oct 2024 17:15:38 GMT