As someone who struggles with time blindness, I've tried different ways to battle it. This timer has helped me so much. You can see the time passing as the red gets smaller. It's a more concrete way of seeing time pass. I use it as a way to mark time but I've also used it to figure out how much time different tasks take. When doing the dishes, I set the timer for the amount of time I think it's going to take and if takes more time than I expected, I use a stopwatch until task is completed. Then next time I know what time to track for task. I use the square white boards to write down my reward for finishing an unpleasant task or to write the next 3 things I'm going to do. Time timer has helped me deal with my time blindness.