"Sat, 19 Oct 2024 20:00:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241019
Only TIME
20:00:21
General datetime
2024-10-19 20:00:21Z
For Database
2024-10-19 20:00:21
For HTTP1.1
Sat, 19 Oct 2024 20:00:21 GMT