"World Clock -Time Converter-" is a free iPhone app developed by Yuki Fukui, falling under the Utilities & Tools category. This app excels in calculating time differences worldwide effortlessly. By simply scrolling with your finger, the times in all cities adjust automatically, eliminating the need for manual time conversions.

The app offers convenient features such as simultaneous time adjustments by scrolling the time bar, changing time units with a double-tap, adding custom cities, direct date and time specification, and custom city name editing. With a focus on practicality, it serves as a valuable tool for international meeting planning, calls, and trip scheduling.