Visualize day/night cycles and working hours across different cities with an interactive timeline. Receive custom notifications for sunrise and sunset. Manually adjust work hours for precise scheduling.
1.3.0
June 27, 2026
Added support for daylight saving time Fixed minor bugs
$7.99
PremiumPlan
Hide ads, alarm function, up to 30 cities
World Time Calc is a time converter app that visualizes day/night cycles and working hours across different cities. It offers automatic time updates and customizable alarm notifications for sunrise and sunset.
Yes, you can manually adjust the working hours for each city within World Time Calc. This allows for precise scheduling and visualization of business hours regardless of standard times.
Yes, World Time Calc contains advertisements. As a free application, ads are displayed to support its development and maintenance.
World Time Calc is available on iPhone and iPad devices. It is designed to function across the Apple ecosystem.
World Time Calc was last updated on September 24, 2025, with version 1.2.0. The release date was November 22, 2023, suggesting regular updates are provided by the developer.
World Time Calc has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.
Yes, World Time Calc allows you to send alarm notifications for sunrise, sunset, and your defined start and end times for working hours.
