I want to click a button that will tell me the time 90 minutes from the current time. For example
It's is now 13:00, I click a button and it will show me 14:30 as the finish time. I have been using a countdown timer but I also want to show the actual finish time. So on display, I will end up with a timer counting down 90 minutes and also a label showing 14:30 as the finish time.