World Clock

World Clock is an application that allows users to track time in any city around the world. It is a useful tool for coordinating international meetings, managing jet lag, and planning calls across different time zones. The app can be used offline, without an internet connection, for its core features.

The app features live world clocks for over 200 cities from every continent. Users can add these cities to their list and see their local times update in real-time. Each city card also displays additional information such as the current date and time, timezone abbreviation and UTC offset, DST (Daylight Saving Time) indicator, day difference badge, public holiday banner for 55+ countries, and personal notes and custom labels.

In addition to the live world clocks, the app also offers a world map view where users can see all their saved cities pinned on an interactive map. This feature is great for understanding the geographic spread of connections and time zones.

The time difference calculator allows users to pick any two cities and instantly see the exact time difference, current time in each location, and the best overlap window for calls or meetings. This is useful for planning meetings with distributed teams.

The meeting planner feature allows users to add up to 5 cities and find the best time slot that works across all time zones. This is ideal for scheduling standups, client calls, or webinars.

The app also includes a flight time calculator that takes into account time zones and date-line crossing detection to provide users with the exact local arrival time. It also offers sunrise and sunset times for any city, calculated using the same algorithm used by NASA.

Other features of the app include smart alarms that can be set in any city's local time, public holiday awareness to avoid scheduling calls on holidays, city notes and custom labels for personalization, a home screen widget for quick access to live times, and a beautiful design with full dark mode support. The app is designed to be smooth, fast, and battery-friendly.