Time.Calc is the perfect tool to work with time! Its intuitive user interface makes even complicated time calculations simple. Both 24h and am/pm are supported. Especially the data in flight logs can be handled easily. Time.Calc also includes a convenient way to calculate working hours. This is perfect for employees, students, or freelancers.

Features:
✔ Calculate the duration between two points of time
✔ Add and subtract durations
✔ Flexible design: you can work with only hours and minutes for work time but include seconds whenever you want
✔ Tap sounds for all buttons (can be switched off)
✔ Configurable rounding options: Results can be rounded up to a variety of different intervals. Useful, if you bill for every hour commenced.
✔ Supports negative values as input parameter and result
✔ mail your calculations or save them to the internal calendar
✔ iPad version with convenient protocol of previous calculations

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Time.Calc has been available on the App Store since 2009 and has thousands of users. If you notice any problems please contact the support instead of giving bad ratings. The issue will be handled immediately because customer satisfaction is priority #1.