Time Zone Converter
Compare the time across cities anywhere in the world.
What it is
A time zone converter tells you what time it is somewhere else in the world. Zonex is a free, browser-based time zone converter made for people whose day spans more than one zone — remote teams, frequent flyers, freelancers with overseas clients, and families spread across continents.
Choose a source city, add the places you care about, and Zonex lines up every local time side by side. You never have to count hours on your fingers or second-guess whether a country is ahead or behind.
How to use Zonex
Converting a time takes only a few seconds:
- Open Zonex and stay on the Time tab — it is selected by default.
- Set your source city: the place whose time you already know, such as your own location.
- Add the cities you want to compare from the built-in list of 40 major cities. You can track up to seven destinations at once.
- Type a specific time, or leave it on now to see the current moment everywhere.
- Read each city's local time, along with the day offset when a result lands on the previous or next calendar day.
Every comparison you build becomes a shareable link. Send that URL to a colleague and they open the exact same view — no sign-up and no install needed. To line up a call across several people at once, use the meeting time planner; if you also juggle exchange rates, the same workflow applies on the currency converter.
Popular examples
Some of the most common conversions people run with Zonex:
- New York ⇄ London — the classic transatlantic gap, usually five hours.
- San Francisco ⇄ Tokyo — a favourite for tech teams working across the Pacific.
- India ⇄ United Kingdom — handy for outsourced teams and family calls.
- Sydney ⇄ Los Angeles — almost a full day apart, easy to get wrong.
- Berlin ⇄ Singapore — a typical Europe-to-Asia business overlap.
Need to watch several of these at once? The world clock view keeps every city on screen together. For a single well-travelled route, see how the working days line up on Paris to Taipei time.
Why use Zonex
Zonex is built to do one job well. The interface is clean and distraction-free, with no ads, pop-ups, or clutter competing for attention. It loads instantly and runs entirely in your browser.
Daylight saving time is handled automatically using the IANA time zone database, so spring and autumn clock changes never trip you up. Zonex works the same on a phone or a desktop, ships with a dark mode by default, and costs nothing — there is no account to create and no paywall.
FAQ
Is the Zonex time zone converter free?
Yes. Zonex is completely free to use, with no account, no sign-up, and no paywall.
Does it handle daylight saving time?
Yes. Zonex uses the IANA time zone database, so daylight saving transitions are applied automatically for every city.
How many cities can I compare at once?
You can compare up to seven destination cities alongside your source city.
Can I share a time comparison with someone?
Yes. Every comparison generates a link that reproduces the exact setup when opened, with no install required.
Do I need to install an app?
No. The converter runs in any modern web browser. A native iOS app is also available if you prefer.