If im playing a 15-sec of 30-sec game, most of the time its enough. But sometimes, often towards the end of the game, and in Cities and Knights, we need more time to make crucial play. This doesnt have to be the defualt but it can be an optional feature where each player can request more time which comes from their personal bank time. Imagine a 30-sec game where all turns are 30 seconds as normal. But each player can also request take additional time if they press a small clock button the way you can press a small red flag button for some 6 player games. Each player can get like 1 minute of additional bank time in total. So Imagine one turn where I need more time to make and important play or discuss things out, I can take that time which comes from my bank time. Lets say I take 12 seconds of additional bank time, then I will have 48 seconds of additional bank time for the rest of the game. And if on another turn I needed extra time again I can request it again and now lets say it takes 20 seconds. Now I will have 28 seconds of additional bank time. This could be an optional feature the way the red flag is for some games. Each player can have their own personal bank time and if they use it all up, they are done.