Google Calendar Task vs Reminder: What's the Difference?

What's the difference between a Google Calendar task and a reminder?

There isn't a separate "Reminder" feature in Google Calendar anymore — what used to be a standalone Reminder is now a Task. Google folded its old Reminders product into Tasks, and in 2025 it did the same with Keep reminders.

Google folded Keep reminders into Tasks partway through 2025 — specifically the second half of that year — so anything saved as a reminder in Keep now gets stored as a task. That means anyone who used to say "set a reminder" in Keep or Assistant is now creating a task that lives in Tasks and shows up on the Calendar grid. The word "reminder" still shows up in one other place, though: Google's developer documentation on reminders and notifications uses it to describe the alert attached to a calendar event. In that documentation, a reminder means something narrower: it's the alert configured to go off some chosen amount of time ahead of an event's start. So the confusion is really between two unrelated things sharing one word — a to-do item (Task) and an event alert (reminder). For a deeper breakdown of that second meaning, see the comparison of a calendar reminder vs alarm.

Do tasks in Google Calendar send notifications?

Yes, but only if the task has a date and a time attached to it. Adding a date and time to a task triggers a notification at that scheduled moment. Skip the time and Google still notifies you, just later than you might expect.

Tasks without a time get their notification at 9 AM, and tasks set up with a deadline get a notification on the deadline day, also at 9 AM local time. That default makes Tasks a poor fit for anything time-critical — a task due "today" won't ping you until mid-morning no matter when you planned to start it. There's also a dedup rule worth knowing: if both the Calendar app and the Tasks app are installed on an iPhone, only one of them delivers the notification. On Android the same logic applies across the Google app, Tasks, and Calendar. If notifications seem to vanish entirely, check which app iOS has permission for — the Google Calendar notification settings guide walks through where that toggle lives.

How do event reminders differ from task notifications?

Event reminders fire ahead of an event's start time and can go out as a pop-up or an email; task notifications fire at the task's own scheduled time with no lead-time option. Reminders can be set for whole calendars or individual events, with users able to configure default reminders per calendar and override them per event. Tasks don't support that kind of customization — a task notification always points at the exact date and time typed into the task, never minutes or hours earlier.

Google's developer documentation also separates reminders from a third category it calls notifications, which cover things like a new event being added, an organizer editing an event, a cancellation, an attendee's response changing, or the daily agenda sent at the start of the day. Those event-change notifications only go out by email, while reminders can be delivered as either a pop-up or an email. None of this overlaps with Tasks, which is its own notification pipeline entirely. For how this plays out specifically on iPhone, see the breakdown of calendar notification vs alarm behavior.

Why don't Google Calendar task notifications wake you up?

Because a task notification is a standard phone notification, not an alarm — Silent mode, Focus, and Do Not Disturb can all suppress it the same way they suppress a text message. Google's own settings reinforce this: task alerts route through whichever app has the OS-level notification permission, and that permission is the same "Allow Notifications" toggle used for every other app, found under the Notifications section of iPhone Settings. There's no separate alarm channel for a task, so a phone on Silent during a meeting stays silent for the task reminder too.

This is the same gap that affects regular calendar event alerts, not just tasks — it's why a growing number of people route their calendar through something that converts events into system alarms instead of notifications. Pealo, for example, turns connected Google Calendar events into loud Google Calendar alarms built on AlarmKit, which rings through Silent mode and Focus the way an iPhone alarm clock does. That only applies to calendar events today, not to Tasks items, so a to-do list deadline still rides on a standard notification either way.

Should you use a task or an event reminder?

Use a task for anything without a fixed time — groceries, a report due "sometime today," a call to return when convenient. Use an event with a reminder for anything tied to a specific moment, especially if other people are involved or missing it has a real cost.

The practical test is whether being even ten minutes late matters. A task's fixed 9 AM default and lack of lead-time options make it a bad match for meetings, flights, or medication schedules — anything where you need a warning before the moment arrives, not a notice after it's already due. Events solve that with configurable lead times, and different alert lead times per calendar let separate calendars carry separate warning windows. Recurring to-dos have their own ceiling, too: Calendar caps a repeating task's interval at 1,000 — whether that's days, weeks, months, or years between repeats — which covers nearly every routine you'd want to automate. See how that repeat setting works in Google's own guide to creating and managing tasks.

For a closer look at how Google's own alert settings compare against Outlook's, the Google Calendar vs Outlook reminders guide covers both side by side. And if the real problem is that nothing on your phone wakes you up reliably, the why calendar reminders don't wake you up post digs into the Silent mode and Focus mechanics behind it.