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Circa³ – Time Zone Converter

Circa³ – Time Zone Converter

World Time and Meeting Planner

374 ratings
133 reviews
🔧 Utilities
✈️ Travel

Archived App (Last seen on 12 Jun 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated

Features

Developer

Kostiantyn Zuiev
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About

Easily manage time across different locations and time zones. Find optimal meeting times and generate invitations that suit everyone's schedule. This tool helps synchronize teams working in various parts of the world.

✓Compare time across multiple locations
✓View working hour overlaps
✓Integrate calendars
✓Organize personally
✓Create one-touch meeting invitations
Show original description

What's New in Circa³

3.3.1

June 20, 2019

Fixes crash and data loss after update from previous version 3.2.

User reviews

Most RecentHighest RatedLowest Rated

Fantastically useful

I’ve used this for keeping track of various time zones for years now.
someguynamedcarlsomeguynamedcarl

Essential app!

I use it every day
LaurenBrandLaurenBrand

The BEST way to avoid time zone conflicts

We are global nomads, and have contacts we work with around the world. This app is perfect for setting up appointments and knowing when to pick up the phone and call.
Lee in MKELee in MKE

Doesn’t work

Can’t add a new city so app is useless
Alan AnonAlan Anon

Best time zone app

I love this app. It’s the best time zone app ever. It’s simple to use and very clear. I use it multiple times a day.
billbennettozbillbennettoz
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FAQ

What does Circa³ do?

Circa³ helps you manage time across multiple locations and time zones. It allows you to visually compare times, find the best working hour overlaps for meetings, and quickly create meeting invitations that are convenient for everyone involved.

What are the key features of Circa³?

Key features include visually comparing time across multiple locations, quickly seeing working hour overlaps, connecting your calendars to check your schedule, personal organization options, and the ability to create one-touch meeting invitations.

Is Circa³ free to use?

Yes, based on the provided information, the application is free to use and does not feature in-app purchases or advertisements.

Who would benefit from using Circa³?

This app is ideal for individuals and teams who frequently collaborate or have members located in different time zones. It's particularly useful for remote teams, international businesses, and anyone needing to schedule meetings across the globe.

Can Circa³ integrate with my existing calendar?

Yes, Circa³ allows you to connect your calendars. This integration helps you check your personal schedule directly within the app, making it easier to find suitable meeting times that don't conflict with your existing commitments.