To delete old alarms and timers on Android, open the Clock app, tap each alarm, and choose Delete — or, if dozens have piled up, clear the Clock app's storage to wipe every alarm, timer, and stopwatch in one move.
TL;DR
- Delete a few alarms manually: Clock > Alarm tab > tap the alarm > Delete.
- Wipe everything at once: Settings > Apps > Clock > Storage & cache > Clear storage.
- Old alarms cost clarity, not gigabytes — each one is only kilobytes of metadata.
- Clearing Clock storage also erases your daily alarm and saved timers, so recreate the ones you still need.
- Google Clock and Samsung Clock both lack a true "select all" bulk-delete for alarms.
Why does my Android Clock app feel so cluttered?
The Android Clock app is the built-in alarm, timer, and stopwatch tool (Google Clock on Pixel and stock Android, Samsung Clock on Galaxy phones). Most versions do not offer a "select all" or bulk-delete option for alarms, so every one-off alarm you ever set — flights, naps, reminders — stays on the list until you remove it by hand. After a couple of years you can end up with dozens of disabled entries crowding the view, making your real daily alarm hard to find. The clutter is organizational, not storage-heavy: each alarm is just a few kilobytes of metadata.
How do I delete a few alarms one at a time?
If your list is short, the manual route is quickest and keeps your important alarms untouched:
- open the Clock app
- tap the Alarm tab at the bottom
- tap an alarm (or the dropdown arrow) to expand it
- tap Delete
Repeat for each alarm you no longer need. On Samsung Clock, you can also long-press an alarm to enter a selection mode and tick several before tapping Delete, which is faster than expanding them one by one.
How do I wipe every alarm and timer at once?
When you have dozens of stale alarms and timers, clearing the Clock app's storage resets everything in a single step. Exact UI path on stock Android:
- open Settings
- go to Apps, then tap See all apps
- open Clock
- tap Storage & cache
- tap Clear storage and confirm
On Samsung the path is Settings › Apps › Clock › Storage › Clear data. The Clock app opens completely empty afterward, so this is the nuclear option — use it only when starting fresh is genuinely easier than picking through the list.
Is clearing Clock storage safe?
Clearing the Clock app's storage is safe for the rest of your phone — it only touches the Clock app's own data. Nothing else (photos, messages, other apps) is affected, and the app itself is not uninstalled. The one trade-off is that it deletes all alarms, saved timers, stopwatch laps, and your bedtime/sleep settings, so you'll need to recreate your daily alarm and any timers you rely on. There is no undo, so jot down the times you want to keep before you clear.
FAQ
Do old alarms and timers take up storage space on Android?
No. Old alarms and timers take up only kilobytes of metadata inside the Clock app, so they don't meaningfully affect storage. The real cost is visual clutter that makes your daily alarm harder to find.
Can I delete all Android alarms at once?
Most Android Clock apps have no "select all" button for alarms, but you can delete them all in one move by clearing the Clock app's storage under Settings > Apps > Clock > Storage & cache > Clear storage. This also erases timers and your bedtime settings.
Will clearing the Clock app data delete my other apps or files?
No. Clearing the Clock app's data only resets the Clock app itself. Your photos, messages, and other apps are untouched — only your alarms, timers, and stopwatch settings are erased.
Why do my deleted alarms seem to come back?
Disabled alarms that you toggled off but never deleted remain on the list and can look like they "came back." To remove them for good, expand each alarm and tap Delete rather than just switching it off.
Clearing alarms is one small slice of a tidy phone. If your Android also feels full or sluggish, work through how to free up space on Android, see what is taking up space on your Android phone, and learn how to clear cache for all apps at once on Android. For a guided, step-by-step path, follow the clean up phone storage hub, or let Cleanor surface the duplicates, large files, and screenshot clutter that eat real space — all scanned locally, nothing uploaded.