How to Set Alarms and Timers on Your Mac in 2026

Alarms and timers belong to the kind of workflow you don’t examine until you need one in a hurry. You’re timing a focus block, setting a backup alarm before a morning flight, or trying the Pomodoro technique for the first time, and it turns out the Mac has more built-in options than you’d expect. Worth a look.

macOS ships with a native Clock app on Ventura, Sonoma, and Sequoia. It handles alarms, timers, a stopwatch, and world clocks, all in one window.

Set Alarms and Timers with the Clock App

Open Clock from your Applications folder, or press Cmd + Space and type “Clock.” The window has four tabs at the top: Alarms, Timers, World Clock, and Stopwatch.

How to Set an Alarm

1. Click Alarms at the top of the Clock window.
2. Click the + button in the top-right corner.

3. Set the time using the hour, minute, and AM/PM controls.
4. Configure the options:

– Repeat: select which days of the week to repeat, or keep it as a one-time alarm. – Label: name it something you’ll recognize: “Team standup,” “Pomodoro break,” “Eye drops.” – Sound: choose the alert tone. – Snooze: toggle it on and set the delay duration.

5. Click Save.

To edit an alarm later, click it in the Alarms list, update whatever needs changing, and save again. To remove it, select it and use the minus button, or right-click and choose Delete. The exact control varies slightly by macOS version.

How to Set a Timer

1. Click Timers at the top of the Clock window.
2. Set the countdown duration: hours, minutes, and seconds.
3. Choose the alert sound for when it ends.
4. Click Start.

The timer runs in the background. The Clock window doesn’t need to stay in front. macOS fires the notification when the countdown ends, and it actually works reliably even when you’re buried in other apps.

The Clock app handles one timer at a time. For simultaneous countdowns or full Pomodoro cycles, a dedicated timer app from the Mac App Store handles that better.

Using Siri to Set Alarms and Timers

Siri connects directly to the Clock app and handles both alarms and timers.

Confirm Siri is enabled first: open System Settings > Siri & Spotlight and turn on Ask Siri. Pick your preferred activation method: “Hey Siri,” the menu bar icon, or a keyboard shortcut.

These commands work reliably:

• “Set a timer for 25 minutes”: starts a countdown in Clock.
• “Set an alarm for 7 AM tomorrow”: creates a one-time alarm.
• “Wake me up at 6:30 AM on weekdays”: creates a repeating alarm.
• “Cancel my 7 AM alarm”: removes it.

For quiet environments, Type to Siri is the clever move. Enable it in Siri & Spotlight settings, click the Siri icon, and type your command instead of speaking.

Use “Set a timer for…” and “Set an alarm for…” explicitly. Vaguer phrasing can route to Reminders rather than Clock; you’d get a notification badge instead of an audio alarm.

Pomodoro and Focus Workflows

The Pomodoro technique runs on 25-minute focus blocks with 5-minute breaks. The Clock app handles the basic version fine: start a 25-minute timer for the focus block, then a 5-minute break timer. No extra app required.

For anything more structured, such as automatic cycle progression, session history, break enforcement, or blocking sites during focus time, a dedicated Pomodoro app from the Mac App Store is the cleaner path. Menu-bar timer utilities are nicely done for this; a live countdown stays visible in the menu bar without interrupting your full-screen work. When choosing one, prioritize multiple simultaneous timers, macOS notification integration, and session tracking.

Calendar and Reminders

Both sync automatically across your Apple devices. Alerts created on your Mac appear on your iPhone and iPad too.

Calendar

Calendar alarms work best when the alert is tied to an event: a meeting, an appointment, a deadline.

1. Open Calendar from your Dock or Launchpad.
2. Navigate to the date you want.
3. Double-click the time slot to create an event.
4. Click the event to open the detail panel, then click Alert.
5. Choose a time offset from the dropdown (for example, “10 minutes before”), or click Custom to set your own.
6. Click OK.

To add a second alert to the same event, click the + that appears next to the first one.

Reminders

Reminders fits when the alert is tied to a task rather than a time slot. “Call the plumber at 2 PM” is a natural use case. For a morning wake-up alarm, the Clock app is the better pick.

1. Open Reminders and click + to add a new item.
2. Type the reminder name, then click the info (i) icon next to it.
3. Toggle on Remind me on a day and set the date and time.
4. Click Done.

To delete a reminder, right-click it and choose Delete.

Third-Party Options

Browser-based timers are useful when you can’t install apps: a shared machine, a work computer with restrictions, or when you’re already living in a browser tab. Kukuklok and E.ggtimer are free, need no setup, and fire audio alerts directly in your browser. They stop working if the tab suspends or the browser closes.

Setalarmclock.net adds named alarms, productivity notes, and a message-to-yourself feature, adding a bit more personality if you want it.

Wake Up Time is a Mac App Store alarm clock built to look and behave like a bedside clock. Set the time, pick a sound, and it keeps ringing until you hit Stop. It works offline and uses its own dedicated alarm sound rather than the standard notification system, which can make it more reliable than app-based reminders in some volume or Focus configurations — though no third-party alarm app can guarantee it will sound under every possible system-volume setting.

Troubleshooting

The Clock app isn’t on my Mac

Press Cmd + Space and type “Clock.” If it doesn’t appear in Spotlight, open System Settings > General > About and check your macOS version. Clock is available on macOS Ventura (13) and later.

On older macOS versions, Calendar events, Reminders, and third-party apps are your options.

My alarm or timer didn’t go off

Check these in order:

• Mac was asleep or off. Alarms require the machine on and awake at trigger time. Sleep behavior varies by Mac model; keep it awake if you’re counting on a time-sensitive alarm.
• Focus mode was active. Open System Settings > Focus and check whether an active profile suppresses Clock notifications.
• Notifications are disabled for Clock. Go to System Settings > Notifications > Clock and confirm alerts are enabled.
• Volume was down. Check system volume and the sound setting inside the alarm or timer itself.

Siri created a reminder instead of an alarm

Use “Set an alarm for…” explicitly rather than “Remind me at…” because the latter routes to Reminders, which produces a notification badge instead of an audio alarm.

Can I run multiple timers at once?

The native Clock app runs one timer at a time. For simultaneous countdowns, use a third-party timer utility from the Mac App Store. Search “timer” or “Pomodoro” and look for apps with multi-timer support and a menu-bar countdown display.

The Clock app covers everyday needs well: morning alarms, kitchen timers, a quick stopwatch between meetings. Siri makes the hands-free version smooth. For Pomodoro workflows with real session tracking, a dedicated productivity timer from the Mac App Store is worth finding; once you’re running timed focus blocks consistently, you’ll want the automatic cycle management and session stats that a good Pomodoro app provides.