Right now on Roblox is it impossible to see stats about how long you’ve spent on each game and Roblox in total. On other platforms, such as Steam, it is a commonplace to get stats on how long you’ve spent playing games.
As a player on Roblox, total playtime is a stat that I am curious about; not only is total playtime a fun stat to have, but it also gives an idea of how well you are progressing in a game concerning how long you’ve spent playing it.
Although it’s quite similar, it focuses, in greater detail, on the counter for individual games rather than in total. Because of this I feel like it’s related to, but slightly different from the request you’re suggesting.