"Sun, 20 Oct 2024 15:15:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241020
Only TIME
15:15:37
General datetime
2024-10-20 15:15:37Z
For Database
2024-10-20 15:15:37
For HTTP1.1
Sun, 20 Oct 2024 15:15:37 GMT