The “24-hour time format” setting does not seem to be saved. Once the page is reloaded, or the browser is closed and restarted, it goes back to the default (enabled).
Sorry to reopen this, @Souljuse, but it doesn’t look like it’s saved between sessions. It works during the same browser session, but once you log out and back in (or maybe just reopen the browser window), it resets back to 24-hour time.
Could it possibly be saved either to a project (as a default) or a individual user profile (as a preference)?
We save localization settings, like all interface settings, in the browser’s local storage, so it won’t work in incognito mode for the time being. Sorry