Open World Clock
Time zones for Windows, free and open source
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A world clock for Windows made for working with people in other time zones. Add the cities you work with and see them side by side. Type a time or scroll over any clock and every city converts at once. The meeting planner shows the hours when everyone is inside working hours, and there's a live day and night map. Free and open source (MIT), no ads, no account, and the app sends nothing anywhere. On the Microsoft Store, or try the real app in your browser first.
PH · launched Sep 29, 2026 · 4 upvotes (top 8%) · 0 views
Niche: world clock and time tools · 53 launches, 11 in the last 7 days ▲ +83% · Explore this niche →
Category and tags
- Horizontal
- Workflow automation
- B2C
- Not AI
- Hobby / open-source project
- Productivity
- Open Source
- GitHub
- Remote Work
Visit website ↗ Source listing ↗
More like this: all 53 launches in world clock and time tools →
Could you build this?
Yes A desktop world clock and meeting scheduler can be quickly built in frameworks like Electron, Tauri, or WinUI using standard IANA timezone libraries.
Competitors
Other products that read as similar to this one : 383 launches clear the similarity bar, closest 8 shown.
Attention rank: #23 of 384 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 273 days after the earliest competitor.
- Time Atlas World · ph · 2026-10-08 · 1 upvotes · similarity 0.76
- TimezoneHop time zone converter · ph · 2026-11-09 · 1 upvotes · similarity 0.69
- ClockGlobe · ph · 2026-11-06 · 1 upvotes · similarity 0.67
- MeetETA · ph · 2026-10-27 · 2 upvotes · similarity 0.66
- WorldTimeCheck.world · ph · 2026-10-13 · 1 upvotes · similarity 0.66
- World Hours · ph · 2026-11-01 · 1 upvotes · similarity 0.64
- WorldTimeBase · ph · 2026-10-22 · 1 upvotes · similarity 0.62
- GlobalMeetingTime · ph · 2026-10-11 · 1 upvotes · similarity 0.60
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.