G Clock Calculator

How many hours can you record with 222 minutes left? G Clock Calculator makes everyday time calculations easy.

Calculate elapsed time, find a finish time by adding a duration, or work backwards to a start time. Convert minutes to hours and minutes, and hours and minutes back to total minutes. See both formats together, such as 1 hr 30 min and 90 min.

Features • Calculate the duration between two times • Add or subtract hours and minutes • Convert time in both directions • Handle calculations that cross midnight • Visualize time relationships with a clock arc • Enter values using wheels or a numeric keypad • Copy calculation results • Switch between English and Japanese • Choose from five accent colors

Designed for iPhone and iPad. Calculations work offline. No ads, subscriptions, or account required.