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Overlap: World Clock

Overlap: World Clock

Time Converter

876 ratings
248 reviews
🔧 Utilities
✈️ Travel
Free

Lowest price: Free a year ago (-100%)

Price history

Details

Released
July 30, 2020
Updated
August 28, 2026

Features

Developer

Bonobo
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About

Easily find optimal meeting times across different time zones with a visual graph. Set custom availability for each location and sync with your calendar to avoid scheduling conflicts. Share convenient times directly from the app.

✓Visual Overlap Graph for meeting times
✓Customizable availability hours per time zone
✓Calendar event integration
✓Multiple time zone display
✓Time zone renaming
✓Lock Screen Standby Mode widget
Show original description

What users say about Overlap

Reviews of Overlap are mostly positive: the Utilities app is rated 4.8/5 from 876 App Store ratings. What users like most: elegant and intuitive interface, helpful for coordinating meetings across time zones. Top complaints: widget not working, timezone data not always accurate. Summarized from real user reviews.

Positive things

  • 💡Elegant and intuitive interface
  • 🚀Helpful for coordinating meetings across time zones
  • 👍Useful for tracking time differences globally
  • 👍Simple and easy to use
  • 👍Beautiful and sleek design

Negative things

  • 🐛Widget not working
  • 🐛Timezone data not always accurate
  • 🐛Duplicate timezone entries
  • 🐛App crashes and freezes
  • 🔋High CPU usage on Mac
See all reviews

What's New in Overlap

2.4.1

August 28, 2026

v2.4.1 Much smarter city search: local spellings and former names now find the right city - try Prishtina, Genève, or Bombay. Fixed an issue where locations at the bottom of the list couldn't be tapped. v2.4.0 The Overlap description now reads naturally when a time zone has been renamed to a person's name. Big efficiency improvements to the animated Overlap graph, which now uses far less CPU and battery - especially on the Mac. Thanks for using Overlap, please get in touch with any questions or feedback you have!

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User reviews

Most RecentHighest RatedLowest Rated

The most useful app anywhere.

Anybody who has an ocean between them and the person on the other end of the line or comm link: this is the app you need.
AAllston-Tollcross

Is this thing a bitcoin miner?

When not on screen, this simple app consumes 40-50% CPU easily. Why?
Eened

Solid 5/5

Has everything I need! Perfect minimalist app. Does exactly what it says.
JJun4osh

Best World Clock App

I work remotely in an international environment and this came in clutch. I 100% recommend.
AAhmedraed

Widget not working

Widget not working on iPhone 17
VVVijesh V
See 243 more reviews

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User experience

🐞

Reported Bugs

4 issues

Timezone data not updating correctly

Bug

Inability to delete unwanted timezones

Bug

Inconsistent behavior across platforms

Bug

Typing issues on Mac version

Bug
✨

Requested Features

5 requests

Add option to reorder timezones

Feature

Implement 24-hour clock display

Feature

Allow customization of colors and backgrounds

Feature

Integrate with calendar for scheduling

Feature

Add weather information for each timezone

Feature

FAQ

What does the Overlap: World Clock app do?

This app helps you find the best times to connect with people in different time zones. It offers a visual graph to easily identify compatible meeting slots and allows you to set custom availability for each location. You can also integrate your calendar to ensure chosen times fit your schedule.

How does the Overlap Graph work?

The Overlap Graph is a unique visual tool that displays your chosen 'available' hours for each time zone. By overlaying these availability windows, the graph clearly shows the most convenient times for scheduling a catch-up or meeting across different parts of the world.

Is Overlap: World Clock free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, indicating a completely free experience for users.

What devices is Overlap: World Clock compatible with?

The app is available on iPhone, iPad, and Mac devices. It also features a Lock Screen Standby Mode widget for iPhones when charging in landscape mode.

Can I use this app to schedule meetings for work?

Absolutely. You can customize availability to represent your office hours for each time zone, making it ideal for scheduling professional meetings. The app also allows you to rename time zones to client names for easy identification and sharing of suitable meeting times.