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iPad Route Planning using Marine Imray Charts, Navionics, Garmin BlueChart, MaxSea, iSailor, iBoating or NavLink and Marine Tides Planner.

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TimeSums Time Calculator

iPhone / iPad App Support

•  TimeSums provides a quick and easy means of calculating addition and subtraction of time. (iPad or iPhone iOS7)

•  Clocks A, B and C can be locked, once set, so that a variety of addition or subtraction problems can be solved.

•  The TimeSums user interface is designed to be easily used by the visually impaired. Large numerals are accessible

•  Audible feedback, with optional spoken numerals and clock times available 'on tap', to the user.

•  TimeSums is specially designed for use in a marine context, with its night vision preserving 'redlight' display option.

•  Clock digits are easily entered, (maximum of 3 taps for any digit 1-9), incremented or decremented with a single 'tap'.  

•  Time offsets of GMT + 1, 2 and 3 hours can be included to see the effect of time zone differences on calculations.

•  The actual 'Time now’ can be automatically shown on Clock A and includes any daylight saving time as appropriate.

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TimeSums User Manual

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Set Numerals

Hours Decrement

Speech

Digit Magnification

Calculation examples

'Time Now' / Night Vision

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Next : > Calculator examples

Resets

Time App to add time and subtract time, up to 71hrs 59min in a three day period.