Simple to use time calculator to add & subtract time components. This is a trial version of app to try out certain Pro features so not all functions such as multiplication and division are available beyond 20 free tries. Pro version available for only 99¢ which has all features enabled. New Time Mode option (8AM + 3.5Hrs = 11:30AM) added. Swipe left or right to quickly enable/disable the Time Mode option (or use Menu button option)Consider Time Calculator PRO version for only 99¢ which has more features, Multiply, Divide, PM and To buttons, military time.Please email if any issues using.