CallTime
Mac
Lives in the menu bar, with widgets and the overlap planner. Optional iCloud sync.
Coming soon to the Mac App Store and Homebrew
Can I call them right now?
CallTime keeps the people you work with in your menu bar: their local time, their working hours, and whether this is a good moment to call, message or email.
Coming soon for Mac, iPhone, iPad and Android.
Everyone's day, side by side
Time zones are the easy part. CallTime also knows when each person works, sleeps and is away, so you see who is free, not just what time it is.
Made for working across time zones
- Their hours, not just their time zone
- Work schedules with split shifts, sleep hours, vacations, public holidays by country and region, and temporary overrides. Daylight saving changes are handled for you.
- Find a time that works
- The overlap planner shows a day, a week or a month for a group of people and picks the best windows. Send an invite through Google Calendar, Teams, email or an .ics file.
- Reach them the right way
- Call, message or email from the list with one click. Set when each person is happy to get a call, a message or an email.
- On your desktop and in your scripts
- Widgets for favourites and team overlap, a command-line helper, and a local MCP server so your AI tools can ask who is free.
Mac, iPhone, iPad and Android
iPhone and iPad
The full app: add and edit people, schedules and vacations. Syncs with your Mac through iCloud.
Coming soon to the App Store
Android
Your favourites and home-screen widgets, read from a calltime-server you run yourself.
Coming soon to Google Play
calltime-server is open source and runs on Linux, Windows and macOS. It serves a read-only availability page from the snapshot files CallTime writes. Get it from GitHub.
Questions and answers
What is CallTime?
CallTime is an app for Mac, iPhone, iPad and Android that tells you whether now is a good time to call, message or email someone in another time zone. You add the people you work with, and CallTime combines their time zone, working hours, sleep hours, public holidays and vacations to show who is available right now and when their next free window starts.
How is CallTime different from a world clock?
A world clock tells you the time in a city. CallTime tells you about a person: whether they are working, asleep, on vacation or on a public holiday, and when the people you need overlap, so you can pick a meeting time.
Does CallTime handle daylight saving time?
Yes. CallTime uses named time zones such as America/Los_Angeles and Europe/Madrid, so each country's clock changes are applied automatically, including the weeks when only one side has changed.
Does CallTime collect my data?
No. There is no account, no analytics and no tracking. The people you add are stored on your device and, if you turn on sync, in your own iCloud. See the privacy policy.
When can I download CallTime?
CallTime is coming soon to the Mac App Store, Homebrew, the App Store and Google Play. The source code is on GitHub.
Saved you a 3am call?
CallTime is built by a small team. If it helps you reach people at the right moment, you can say thanks with a coffee.
Your people stay on your devices
No account, no analytics, no tracking. Everything you add is stored on your device and, if you turn it on, in your own iCloud. Read the privacy policy.