(fallen london stamps by throws this ADHD app idea into here - an alarm app but when you set up an alarm, it creates a visual representation of how much time is left. so if it's 10 AM and you have an appointment at 1, you can set an alarm for 12:30 and it'll display as a 2 hour 30 min countdown timer with some kind of visual to represent the amount of time left, like one of those circle timers that slowly depletes.
bonus: you can set intervals for a timer, like you can say "alert me both 30 minutes and 5 minutes before this time in particular" and set the timer for 1, and it'll ring at both 12:55 and 12:30.
the issues I have with existing alarm/reminder stuff is that they do not give me a visual of how much time remains, which our fool of a brain interprets as "there is no time remaining, time to sit here paralyzed forever." seeing a slowly depleting circle or some other concrete representation puts it at ease. I have so far been accomplishing this by setting up timers by hand, but that requires me to calculate the time differences myself and it is an error-prone process
