In Mario Kart Tour there is a daily limit on the number of points for characters, karts, and gliders (150), and the number of coins (300) you can collect each day. As well as that, the items in the shop (known as the “Daily Selects”) changes daily too.
I had always assumed that this would reset at midnight. However, recently I had to get up early and so found myself playing just after 4am (UTC+1). To my surprise, the daily selects hadn’t yet changed and I was still unable to get any more coins or points.
This begs the question, at what time does Mario Kart Tour register a new day?