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World clock · iPhone + Apple Watch

Every time zone.
One glance.

Tempus is the world clock for people who work, travel, and stay close to the people they love — named clocks, instant conversion, and a meeting finder that actually finds the meeting.

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Tempus app showing a list of named world clocks for New York, Edinburgh, Kyoto, Marseille, Sydney, and San Francisco with live times.

Why Tempus

Built for people juggling time zones, not tourists checking one.

Clocks with names, not just cities

Add a clock for a city or a person — “Mum in Sydney,” “Design team, Berlin” — with a custom name, emoji, and color tag so it’s readable at a glance.

Convert instantly

Pick any time in any zone and every clock updates together. Drag the time scrubber to slide through the day and see who’s awake.

Find a meeting that actually works

Set working hours per clock and Tempus shows the overlap. Add it to your calendar in one tap or share an .ics invite.

Private by design

No account, no ads, no tracking. Your clocks live on your device and in your own private iCloud database.

See how it works

01 · Meeting Finder

Find the window that works for everyone

Select two or more clocks, set working hours for each, and Tempus highlights the overlap. Tap a slot to add it to your calendar or export it as an .ics invite.

Tempus Meeting Finder showing selected cities, an overlap timeline, and best meeting times.

02 · Time Converter

Drag once, see every zone move

Pick a time in any clock and every other clock updates with it. Drag the scrubber to slide through the day; day/night dots show who’s awake.

Tempus Time Converter with a scrubber showing converted times for Tokyo and Sydney.

03 · City Detail

A place, not just an offset

Tap any clock for a full city view — a skyline that shifts with the time of day, sunrise and sunset, and current conditions from Apple Weather.

Tempus City Detail view for Tokyo with skyline, sunrise and sunset times.

04 · Apple Watch

Time on your wrist

Tempus on Apple Watch shows your clocks, converts with the Digital Crown, and offers complications for your favorite cities. Clocks sync instantly between iPhone and Watch.

Home Screen widgets and iCloud keep every device in sync.

Apple Watch on a wrist showing the Tempus complication against a city skyline at dusk.

Privacy first

No accounts. No ads. No tracking.

Tempus doesn’t know who you are and doesn’t want to. Your clocks are stored on your device and, if you turn on iCloud, in your own private iCloud database — never on our servers, because we don’t have any. Weather comes from Apple Weather for the cities you add, never for your location.

Read the full privacy policy

Support

Questions

How do I add a clock?

Tap + on the clock list, search for a city, then optionally give it a custom name, emoji and color.

How do I convert a time?

Open Convert, choose a source clock and time, or drag the scrubber. All your clocks update together.

How does the Meeting Finder work?

Pick two or more clocks, set working hours for each, and Tempus shows the windows where everyone is available. Tap a slot to add it to your calendar or share an .ics invite.

Why don't I see weather?

Weather is optional. Turn it on in Settings › Weather. It needs an internet connection and is provided by Apple Weather for the cities you added, not for your location.

My clocks are not syncing to my Apple Watch.

Make sure both devices are signed into the same iCloud account and that the watch app is installed. Opening Tempus on the iPhone triggers an immediate sync to the watch.

Can I use Tempus on iPad or Mac?

Version 1.0 is designed for iPhone and Apple Watch.

Still stuck? Email viktor@gamov.io — see the full support page.