Time : Calculator is a free iPhone application developed by YUTAKA KENJO, falling under the Business & Productivity category. This handy tool simplifies time calculations by allowing users to input expressions like 1:30+0:50. The app automatically inserts ":" when entering a number, enabling quick calculations for various scenarios, such as work hours, daily errands, and travel time. Users can perform addition, subtraction, multiplication, and division operations effortlessly.

Furthermore, Time : Calculator features an automatic calculation history, ensuring that users can review previous calculations at any time. The app also includes a memory key for saving and adding subtotals, along with the ability to register commonly used time intervals for quick calculations. With a color palette offering options like orange, green, cyan, pink, and black, users can personalize their experience to suit their preferences.