How do I set up a shared calendar?

Most shared-calendar problems are not technical. They come from sharing a personal calendar rather than making a separate one, so everyone sees everything and nobody trusts it.

Step by step

1. Make a separate calendar, not a shared personal one.A new calendar called Household or Family. Your own appointments stay private, and people can hide the shared one without losing their own. This decision prevents most later friction.
2. Decide what belongs on it.Things that affect other people — who is out, collections, deliveries, appointments needing a lift, bin day. Not personal admin. An agreed scope is what stops it filling with noise.
3. Share it with the right permission.Most providers offer see-free-busy, see-all-details, edit, and manage-and-share. Edit is usually right for a household; view-only is right for a wider group.
4. Share across providers by email address.Google, Outlook and Apple can all share to any address. The recipient gets a link and can add it to whatever they already use.
5. Use subscription links for stubborn cases.Every provider can publish a calendar as an ICS link that others subscribe to. Read-only, but it works across any combination of platforms.
6. Expect a delay on subscribed calendars.Subscribed ICS feeds refresh on the subscriber's schedule, sometimes several hours. For anything time-critical, proper sharing rather than a subscription link.
7. Agree a naming convention.Start each entry with who it concerns — 'Sam — dentist 3pm'. On a shared calendar the name is what makes an entry useful at a glance.
8. Use colours consistently.One colour per person, or per type. Agree it once. It is the difference between a calendar you scan and one you have to read.
9. Set sensible defaults for reminders.Shared reminders that ping everyone become noise fast. Most providers let each person set their own notification preferences on a shared calendar — say so when you invite people.
10. Put recurring household things on once.Bin collections, standing commitments, regular clubs. Recurring entries are what make the calendar worth opening.
11. Consider a wall display.An old tablet in the kitchen showing the shared calendar. For households where not everyone lives in their phone, this is what gets it actually used.
12. Review who has access occasionally.Especially after someone moves out or a relationship changes. Sharing persists silently until revoked.

Tips

• A separate shared calendar, never your personal one. It is the decision the whole thing depends on.
• Name entries by person first. 'Sam — dentist' beats 'dentist' on a calendar four people read.
• For cross-provider sharing that will not behave, publish an ICS link and have people subscribe.

Common mistakes

• Sharing your own primary calendar — Everyone then sees all your personal appointments, and you cannot separate household items from your own. Create a second calendar instead.
• Giving everyone manage-and-share rights — Anyone can then reshare or delete the calendar entirely. Edit is enough for almost every household.

If it doesn't work