The Calendar App You Already Have, Used Properly

For decades my mother kept a wall calendar in the kitchen. Bird-of-the-month pictures, square boxes for the days, a stub of pencil hanging on a string from a thumbtack. Doctor's appointments went on it. Birthdays. The day the propane truck was coming. When the wall calendar was full, she went to the drug store and bought another one, and life continued.

She is seventy-nine now. She still has the wall calendar. She also has an iPhone, on which there is a calendar app she had never opened until two years ago. We opened it together one afternoon. By the end of the hour she had migrated the whole wall calendar onto the phone, and the wall calendar (the cardinal-of-the-month picture from December still showing) was now mostly decorative.

Here's what I taught her, and what I'd teach you.

The basics nobody bothers to explain

Open the Calendar app. The icon is the small square showing today's date — on iPhone it's white with the current date in red; on Android it's the multicolored Google Calendar square. Same idea on both.

You'll see this month. Today is highlighted. Days with appointments have small dots underneath. Tap a day to see what's on it. Tap the small plus sign in the top-right corner to add something new.

That is genuinely the whole thing. The complications come in when you start trying to do more sophisticated things, which mostly you don't need to.

Adding a doctor's appointment

Tap the plus sign. Type a title: "Dr. Patel — annual checkup." Set the date. Set the start time. The phone will offer a default end time of one hour later, which is usually wrong for a doctor's appointment; set the end time to thirty minutes after the start, or whatever the appointment actually is.

Now the useful bit: tap "Location" and type the office address. The phone will offer a list of matching addresses from Maps — pick the right one. The reason this matters is that on the day of the appointment, the phone will know how long the drive is from your current location, and it will alert you when you need to leave to get there on time. Twenty-five minutes' drive in traffic? The phone tells you to leave thirty minutes ahead. It's the single most useful feature most people don't know exists.

Tap "Alert." Choose "1 hour before" — or "1 day before" if you want a heads-up the day before. You can add more than one alert; I usually set one the day before for important things and one an hour before for everything else.

Tap "Add." It's saved.

Recurring events: birthdays and pill bottles

For things that repeat — a birthday, a weekly meeting, a monthly bill — tap "Repeat" while creating the event. Choose Daily, Weekly, Monthly, or Yearly. The phone will create the event every cycle without you doing anything.

One pattern I recommend specifically: a recurring monthly event called "Pill bottle check," set for the first of the month, alerting at 9 AM. The event reminds you to look at your prescription bottles and reorder anything that's getting low. Five minutes a month, no surprises at the pharmacy.

Sharing a calendar with a family member

If your adult daughter wants to know your doctor's appointments without you having to text her each one, both iPhone and Android can share a calendar with another person.

On iPhone (iCloud Calendar): Open Calendar → tap "Calendars" at the bottom → tap the small "i" next to your calendar name → tap "Add Person" → enter her name. She gets an invitation. Once accepted, she can see your events.

On Android (Google Calendar): Open Google Calendar → tap the three lines top-left → tap Settings → tap the calendar you want to share → "Add people and groups" → enter her email. Same idea.

You can also create a separate shared calendar — "Mom's Medical" — and put only the things you want her to see on that calendar, keeping your personal events on the main one. My mother and I have one for her appointments. She likes that I can see when she's at the cardiologist. I like knowing without having to ask.

The weekly review that changes everything

On Sunday evening, open the calendar and look at the week ahead. That's it. Just look. Notice what's coming. Notice anything you might need to prepare for — a birthday card to write, a prescription to fill before a trip, a sister's flight to pick up.

I've watched this small ritual cut down on missed appointments and last-minute scrambles more than any other single habit. Five minutes once a week. Sunday is just a convention; pick whichever evening you'd actually do it.

What can go wrong (and isn't your fault)

Sometimes appointments don't show up at the expected time, and the reason is the time zone. If you traveled with your phone — to visit family across the country, say — and added an event while there, the phone may have recorded the event in that time zone. When you come home, the appointment shifts on the calendar.

The fix: in event details, look for "Time Zone." Tap it and choose your home city. Or, better, before traveling, go to Calendar settings and turn on "Time Zone Override" — set it to your home time zone — so the phone doesn't change zones while you're away.

This is a small thing that has caused real problems for several people I've helped. Mention it to anyone who travels regularly with their phone.

The wall calendar

My mother still has hers. It is, more than ever, decorative — but I would not encourage anyone to throw out a working system that has held forty years of appointments. The phone calendar is an addition, not a replacement. It does things the wall calendar can't (drive-time alerts, sharing with family, recurrence). The wall calendar does things the phone can't, the chief of which is to be visible from the kitchen sink without anyone tapping anything.

Have both. Use whichever helps. The pencil stub on the string is still allowed.

Written by Margaret Holloway. Last verified 18 June 2026.