New in 3.2: made for iPhone Duo. Fold it halfway — your calendar on one side, your people on the other. Know when to call anyone, anywhere.
Know when to call anyone, anywhere — without doing time-zone math.
Add the people you work with and the people you love. Horzono shows the time where each of them is, and whether it's day or night there, so you can see at a glance who's starting their morning, who's wrapping up work and who's asleep.
Planning a call? Drag the time slider and every clock moves together. Find the hour that works for the whole team before you send the invite. Your calendar sits right beside them, with a Join button for your next call.
Type a city, not a time zone. Horzono knows more than 25,000 cities, works completely offline, and runs on iPhone, iPad, iPhone Duo, the Mac menu bar and Apple Vision Pro — with widgets on each. No ads. No tracking. No subscription.
FEATURES
• Day or night at a glance — for every person you track
• Time slider — scrub up to 24 hours forward or back across everyone at once
• Type a city, get its time — no country or time zone to know
• Widgets — on your Home Screen, Lock Screen and Mac desktop
• Your calendar beside your people, with a busy-day heat map and one-tap Join
• Group by time zone — everyone in the same zone in one row, labeled CET, EST and so on
• Reference point — compare everyone against one person you choose, or UTC
• Make it personal — a name, an emoji, a photo or a contact for each person, and several people on one city
• 12- or 24-hour clock, or follow the system
• Made for iPad and iPhone Duo — your calendar on one side, your people on the other
• Mac menu bar app with a global hotkey and a join-call shortcut
• MCP server on Mac — let AI assistants read your people's local time and plan a meeting across them
• iCloud sync — your people and settings on all your devices
HORZONO PLUS
One in-app purchase — no subscription, ever. Plus unlocks iCloud sync, the reference point and UTC, the time slider, calendar events and the busy-day heat map, time-zone grouping, attached people, customization, and — on Mac — the global hotkey, join-call and the MCP server.
PRIVATE BY DESIGN
Horzono has no ads, never tracks you, and keeps your data on your devices.
Questions or ideas? We'd love to hear from you at micropixels.software/horzono.
Needs:* 12hr/24hr time format toggle in settings (currently follows system settings)* Time slider needs to do more. - Current can only shift time up to 12 hrs in the future- Plus or minus 12 hrs is what I need.
Developer Response
Hi! Improved in version 3.1.0. Please give it a try.
Very nice app.
Connorrd Gods
I’m impressed with how little battery it uses. Very optimized and well-thought-out app.
Works great.
Celesti@lCh@mpion_jnav
I’ve ditched other world clock apps for Horzono. It’s superior in every aspect.
no support for UTC only locations
JoeyVay
really wish I had the ability to add UTC zulu as a reference time without having to pick a specific city
Horzono 3.2 is made for iPhone Duo.
• iPhone Duo: fold it halfway and Horzono splits at the fold — your calendar on one side, your people on the other.
• Widgets: the large Locations widget now fills its whole tile, and the medium one keeps every row inside it.
• Day and night are now right for every location around the clock, including places whose local day crosses midnight UTC.
• Calendar: the agenda follows the time slider, so you see the events at the moment you're previewing.
• Join a call from any event whose meeting link is in its Location field.
• iPad: the location grid sizes its columns to fit names and times.
• iPhone and iPad: Settings and Add have their own toolbar buttons.
• Mac: the menu-bar panel keeps its size and your locations in view while you drag the time slider, and the join-call hotkey tells you when it has no calendar access.
• A refined app icon in dark mode.
Thanks for using Horzono! If you enjoy it, please leave a review.
Version 3.2.0
The developer, Adam Rozynski, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
