Time Calculator

TimeCalculator Quick time calculations on your Garmin watch. A simple Garmin watch app for adding, subtracting, and converting time durations directly on your wrist. Ideal for pilots, flight instructors, aircraft renters, and anyone who needs quick time calculations without using a phone. MAIN FEATURES • Add and subtract time durations • Chain multiple calculations together • Calculate ETA from current time plus duration • Show decimal hours in parallel • Support multi-day durations in DD:HH:MM format • Touchscreen-based keypad • Hardware back button support • Clear highlight of the active operator MADE FOR PILOTS Useful for: • Flight logbook calculations • Adding block times across multiple legs • Hobbs meter billing • Aircraft rental cost calculations • ETA checks • Quick conversion into decimal hours INPUT FORMAT Enter durations in HHMM format. Examples: • 45 = 45 minutes • 130 = 1 hour 30 minutes • 1230 = 12 hours 30 minutes KEYPAD 7 8 9 + 4 5 6 - 1 2 3 = C 0 ETA ← HOW IT WORKS • Enter a duration • Tap + or - • Enter the next duration • Tap = • Continue adding or subtracting as needed For ETA: • Enter a duration • Tap ETA • The app shows the estimated arrival time DISPLAY • Top line Decimal hours, for example 2.5 h • Main display Time result in DD:HH:MM format • ETA mode Estimated arrival clock time CONTROLS • + adds time • - subtracts time • = shows the result • ETA calculates arrival time • ← deletes the last digit • C resets the calculation