The highscore list is updated every 60 minutes (1 hour). This goes for in-game and on the website. All categories update at the same time. As you can see in the image below, you can check the time of the last update at the official website at top right side of the list.
Golden Question of May contestApril 26, 2021
How can the Moderation Center be more helpful?April 21, 2021
Direct links to duplicate questionsApril 19, 2021