A generator for dynamic Discord timestamps because they're apparently incapable of doing this in-app.
The currently available generators (google top results) don't allow for adjusting the time zone offset, which is necessary for time zone math (e.g. when hoyoverse once again posts an announcement with an obscure time zone such as 08:00 AM (UTC-4) or 20:00 (UTC+8), and you want to share it with chat).
Another reason is portability: it's a single HTML file without any external dependencies that you can save on your computer.