The fastest way to add a birthday

Open the Calendar app on your iPhone and tap the + button in the top right corner. Tap Add Event, then type the person's name in the title field. Scroll down and tap Starts, then change the date to their birthday and set the time to 12:00 AM (midnight). Scroll further and toggle All-day event on so the birthday doesn't show a specific time. Tap Add Recurring Alert and choose Every Year so you get reminded on their birthday annually. Tap Save.

That's the complete process. The birthday now appears on your calendar every year on that date, and your iPhone sends you a notification on the morning of their birthday.

Key Takeaways

  • Create a new event in Calendar, set it to all-day, and toggle the yearly recurrence so it repeats every birthday.
  • Set the time to 12:00 AM and turn on the all-day toggle so the birthday displays cleanly without a specific hour.
  • Add a notification in the event details so your iPhone reminds you the morning of their birthday.
  • Birthdays stored in Contacts automatically sync to Calendar if you turn on the Birthdays calendar in Calendar settings.
  • You can edit or delete a birthday event anytime by tapping it on the calendar and selecting Edit.

Using Contacts to store birthdays automatically

If you store someone's birthday in the Contacts app, your iPhone can display it in Calendar without you creating a separate event. Open Contacts, find the person's entry, and tap Edit. Scroll down and tap Add birthday, then select the month, day, and year. Tap Done.

Now open Calendar, tap the three-line menu icon at the bottom right, and scroll down to find Birthdays. Toggle it on. The birthday now appears on your calendar automatically, and you'll get a notification on that date. This method is cleaner if you already maintain contact information in the Contacts app, because the birthday lives in one place and syncs everywhere.

Setting up notifications so you don't forget

When you create a birthday event directly in Calendar, tap the event after saving it, then tap Edit. Scroll down to the Alert section. By default, Calendar offers a 9 AM notification on the day of the birthday. If you want the reminder earlier or later, tap that alert time and choose a different option—options range from 15 minutes before to 2 days before.

You can add a second alert by tapping Add Another Alert. For example, you might set one alert for 9 AM on the birthday itself and another for 8 AM the day before, giving you time to plan. Tap Save when you're done. Your iPhone will send notifications at the times you chose, even if you don't have Calendar open.

Editing or deleting a birthday you've already added

Find the birthday on your calendar by scrolling to that date or searching for the person's name. Tap the event, then tap Edit in the top right. You can now change the date, the person's name, or the notification settings. If you want to delete the birthday entirely, scroll to the bottom and tap Delete Event, then confirm.

If the birthday came from your Contacts app, you'll need to edit it in Contacts instead. Open Contacts, find the person, tap Edit, and change or remove the birthday field. The change syncs to Calendar automatically.

Why birthdays sometimes don't show up

The most common reason a birthday doesn't appear is that the Birthdays calendar is turned off. Open Calendar, tap the three-line menu at the bottom right, and look for Birthdays in the list. If it's toggled off, turn it on. You should see all stored birthdays appear within a few seconds.

Another reason is that the birthday was never saved in Contacts or Calendar in the first place. Check the person's contact entry to confirm the birthday field is filled in. If you created the event in Calendar but it's not showing, make sure you didn't accidentally set it to a different year or disable the event. Tap the event and check the date and whether it says "Cancelled" anywhere.

Adding birthdays from a shared calendar

If someone shares a calendar with you that includes birthdays, those birthdays appear in your Calendar app automatically once you accept the shared calendar. You don't need to recreate them. However, you cannot edit shared events unless the person who owns the calendar gave you editing permission. If you want to add your own notification to a shared birthday, create a separate all-day event in your own calendar on the same date.

If you're sharing your calendar with family members and want them to see birthdays, make sure the Birthdays calendar is visible in your sharing settings. Open Calendar settings, find the calendar you're sharing, and confirm it's set to allow others to view it.

Syncing birthdays across your devices

Birthdays stored in Contacts sync automatically across your iPhone, iPad, and Mac if you use the same iCloud account. When you add a birthday to a contact on your iPhone, it appears in Contacts on your other devices within a few minutes. The same is true for birthday events created directly in Calendar—they sync through iCloud.

If a birthday isn't syncing, check that iCloud is turned on for Contacts and Calendar. On your iPhone, go to Settings > [Your Name] > iCloud and make sure both Contacts and Calendars are toggled on. If they're already on, try signing out of iCloud and signing back in to force a sync.

Frequently Asked Questions

Can I add a birthday without knowing the year?

Yes. When you create the event or edit the contact, you can leave the year blank or set it to any year—the birthday will still recur every year on that month and day. Some people use 1900 as a placeholder year so the event sorts correctly.

What happens if I add the same birthday twice by accident?

You'll see two notifications and two calendar entries for that person. Delete one by tapping it and selecting Delete Event. If one came from Contacts and one from Calendar, delete the Calendar version and keep the Contacts version so you have a single source of truth.

Can I change the notification sound for birthdays?

Calendar notifications use your iPhone's default notification sound, which you can change in Settings > Sounds & Haptics. You cannot set a unique sound for birthday events specifically—all Calendar notifications use the same sound.

Do birthdays show up on my lock screen?

Yes, if you have notifications turned on for Calendar. The birthday notification appears on your lock screen at the time you set. You can tap it to open the event details.

Can I add a birthday to someone else's iPhone through shared calendar?

Only if they've given you editing permission on their calendar. If they have, you can create an event on their shared calendar. However, it's better to ask them to add it themselves so they control their own calendar.