Calendar
Safe to disable
Google Calendar, the calendar app preinstalled on Pixels and many other phones that ship Google apps.
Google package
Google Calendar Sync
Advanced: com.google.android.syncadapters.calendar Advanced Community evidence
The background sync adapter that keeps calendar events on the phone matched with Google Calendar. You can disable it, with a caveat: read what stops working first.
What it does
Google Calendar Sync copies events between Google Calendar and Android's calendar storage on the phone, so any calendar app can show your Google events. It runs in the background when events change or Android schedules a sync, and its switch is the Calendar toggle in your Google Account's sync settings. It has no icon of its own.
If you disable it
Events stop syncing between the phone and Google Calendar, so calendar apps on the phone no longer see changes made elsewhere.
How to disable it
On most phones Settings greys out Disable for this package, so ADB is the way to turn it off. The commands below work without root and can be undone.
Disable it (reversible)
adb shell pm disable-user --user 0 com.google.android.syncadapters.calendarTurn it back on
adb shell pm enable com.google.android.syncadapters.calendarThe stronger option removes it for your user only; the original copy stays on the phone and a factory reset brings it back. Prefer disabling: it is easier to undo.
Uninstall for the main user
adb shell pm uninstall -k --user 0 com.google.android.syncadapters.calendarRestore after an uninstall
adb shell cmd package install-existing com.google.android.syncadapters.calendarNew to ADB? Set it up in about ten minutes.
Data and battery
Sends and receives your Google Calendar events between the phone and Google's servers.
Where it appears
- Made by Google LLC.
Questions people ask
What is com.google.android.syncadapters.calendar?
com.google.android.syncadapters.calendar is Google Calendar Sync. The background sync adapter that keeps calendar events on the phone matched with Google Calendar.
Can I disable Google Calendar Sync?
You can disable it, with a caveat: read what stops working first. On most phones it takes ADB.
What happens if I disable Google Calendar Sync?
Events stop syncing between the phone and Google Calendar, so calendar apps on the phone no longer see changes made elsewhere.
Sources
- Universal Android Debloater list entryCommunity list
- Google Calendar Help: Sync Calendar with a phone or tabletVendor documentation
Each source answered when this page was checked on 25 October 2026.
Confidence: Community evidence. Backed by community debloat lists and forum reports, not by the maker. How we decide a verdict.
Cite this page: https://mysystemapp.com/packages/com.google.android.syncadapters.calendar/ (verified 25 October 2026). Something wrong or out of date? Request a correction.