Time Zoneish vs Dato vs Clocker: Best Timezone Apps for Mac

More Than Just a Clock

If you work with people across timezones, you need more than the macOS Clock app buried in your dock. These three menu bar apps all solve the timezone problem, but they take different approaches.

Clocker (Free, Open Source)

Clocker is the simplest option. It's a free, open-source menu bar app that shows multiple timezones. Add cities, see their current time, and that's about it.

It does the basics well and the price is right. But it hasn't been actively maintained in a while, and there's no contact management, calendar integration, or meeting scheduling.

Best for: People who just want a quick timezone reference and don't need anything else.

Dato ($7.99)

Dato is more of a menu bar calendar replacement than a dedicated timezone tool. It shows your calendar events, the current date and time in multiple formats, and supports timezone tracking.

It's well-designed and actively maintained. The timezone feature is solid but it's one part of a broader calendar app. If you primarily want a better menu bar calendar with timezone support baked in, Dato is a good choice.

Best for: People who want a menu bar calendar replacement that also handles timezones.

Time Zoneish

Time Zoneish is built specifically around the timezone workflow. Beyond showing times across zones, it has contacts with availability tracking (see who's available right now based on their working hours), calendar integration that shows events with timezone-aware times, a meeting calculator that finds the best meeting times across multiple participants, and video call detection that spots Zoom, Teams, and Meet links in your calendar events.

The time slider lets you scrub -24 to +24 hours to find overlap windows. You can import contacts from Apple Contacts, organise them into colour-coded groups, and generate email invites with everyone's local times listed.

Best for: People who actively schedule across timezones and want contacts, calendar, and meetings in one place.

Feature Comparison

For basic timezone display, all three work. Clocker is the lightest option — just clocks. Dato adds calendar events on top. Time Zoneish adds contacts, availability, meeting scheduling, and video call integration.

Clocker has no contact management. Dato doesn't track contact availability or working hours. Time Zoneish lets you add contacts with their timezone and working hours, then see at a glance who's available.

For meeting scheduling, only Time Zoneish has a dedicated meeting calculator that ranks the best times across multiple participants and detects calendar conflicts.

Calendar integration exists in Dato (it's primarily a calendar app) and Time Zoneish (which pulls in your macOS Calendar events and shows them in timezone context). Clocker has no calendar support.

Pricing

Clocker is free. Dato is $7.99 on the App Store. Time Zoneish has a 7-day free trial followed by a one-time in-app purchase on the Mac App Store.

The Bottom Line

Choose Clocker if you want a free, simple timezone reference and nothing more.

Choose Dato if you mainly want a better menu bar calendar and timezone tracking is a nice bonus.

Choose Time Zoneish if you actively coordinate across timezones and want contacts with availability, meeting scheduling, and calendar integration in one focused tool.

There's no wrong choice — it depends on whether timezones are a minor convenience or a daily workflow for you.

Try Time Zoneish free for 7 days