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Open World Clock

Open World Clock

Time zones for Windows, free and open source

0upvotes
Launched September 29, 2026

About Open World Clock

Open World Clock is a free and open-source Windows application designed to simplify the management of global time zones for remote teams and international collaborations. Users can add multiple cities they work with and view them side by side, making it easy to coordinate meetings and deadlines across different regions. Its intuitive interface allows for quick time conversions by typing or scrolling over clocks, while the integrated meeting planner helps identify optimal working hours for all participants. The live day and night map further enhances awareness of global time zones at a glance. Being open source under the MIT license, it guarantees privacy and no ads, with no account required, making it a trustworthy tool for professionals who prioritize data security and simplicity. Available on the Microsoft Store and accessible via browser, Open World Clock caters to remote workers, teams, and organizations seeking a lightweight, privacy-focused world clock solution.

Screenshots

Open World Clock screenshot 1
Open World Clock screenshot 2
Open World Clock screenshot 3
Open World Clock screenshot 4

Pros

  • ✓Open source and free with no ads or account requirements
  • ✓Easy to add and view multiple cities side by side
  • ✓Built-in meeting planner and live day/night map for better scheduling
  • ✓Cross-platform accessibility via browser and Windows app
  • ✓Privacy-focused with no data sending

Cons

  • ✗Limited advanced scheduling features compared to some paid tools
  • ✗No integrations with calendar or communication platforms
  • ✗May lack customization options for power users

Use Cases

1Coordinating international team meetings
2Managing remote project deadlines across time zones
3Planning global events or webinars
4Scheduling client calls with international clients
5Tracking global business hours for support teams
6Educational purposes for understanding world time zones

Pricing

Pricing not verified

Quick Info

Upvotes0
Comments1
Launched9/29/2026

Topics

ProductivityOpen SourceGitHubRemote Work

Makers

João Carvalho

João Carvalho

Alternatives

•List of well-known alternative tools in the same space not provided
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