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How can I calculate the time differences in 24 hour if the user input is 2255 and 2305 the output should be 10 minutes. I got an idea is to separate the input to 2 parts, 2 digits and 2 digits. the first 2 digits is the hour, times it to 60 to make it to minutes. Then plus it with the second 2 digits and then calculate the differences. I dont want use any Date Calendar data type or API to solve it. Thanks
Highest two digits: number / 100
Lowest two digist: number % 100
But what would you do if user enter 3:05 or 3-05? I think it’s problem of usability. Best solution is making UI definitely understandable for user. For example you can use separate fields for hours and minutes.