"Sun, 20 Oct 2024 18:48:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241020
Only TIME
18:48:15
General datetime
2024-10-20 18:48:15Z
For Database
2024-10-20 18:48:15
For HTTP1.1
Sun, 20 Oct 2024 18:48:15 GMT