"Sat, 19 Oct 2024 20:16:03"

Convert date and time to unixtime.

Another datetime format string at UTC

YYYYMMDD
20241019

Only TIME
20:16:03

General datetime
2024-10-19 20:16:03Z

For Database
2024-10-19 20:16:03

For HTTP1.1
Sat, 19 Oct 2024 20:16:03 GMT