"Sun, 20 Oct 2024 18:37:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241020
Only TIME
18:37:37
General datetime
2024-10-20 18:37:37Z
For Database
2024-10-20 18:37:37
For HTTP1.1
Sun, 20 Oct 2024 18:37:37 GMT