One person, five calendars: deciding which ones control your availability
A practical method for people with several calendars: decide which to check for conflicts, which one receives new bookings, and which to leave out, plus workarounds for iCloud and client accounts you cannot connect.
Plenty of people now live across several calendars. A consultant has a work Google calendar, a guest Microsoft 365 account from a client, a personal iCloud calendar, a family calendar shared with a partner and a separate calendar for a weekend side business. Each holds commitments that should stop someone booking you, but they rarely talk to each other, and the booking page only knows what you connect.
This guide is about one person's calendars, not a team's. It sets out a simple rule: every calendar gets one of three roles. It is checked for conflicts, it receives new bookings, or it is left out. If your situation is mainly a work Google account and a work Outlook account, our guide to scheduling across Google Calendar and Outlook goes deeper on that pair. For several people sharing availability, see team calendar sync.
The three roles a calendar can play
Check for conflicts
A calendar in this role is read for busy time. Anything marked busy on it removes that time from your booking page. This is where most of your calendars belong: anything holding commitments you cannot double-book. Visitors to your booking page see only open times, never the titles or details of events on these calendars.
Write bookings to
One calendar should receive new bookings. Choose the one you look at most and the one your video meeting links and reminders make most sense in, usually your main work calendar. Writing bookings to several calendars, or to a calendar you rarely open, is how sessions get missed. Check your scheduling tool's settings to see which connected calendar receives new booking events, and set it on purpose rather than leaving the default.
Leave out
Some calendars should not affect availability at all: subscribed public holiday or sports fixture calendars, a colleague's calendar you can view, a shared family calendar full of 'bins out' reminders. Connecting these only hides free time.
How many calendars Calenix can connect
Calenix connects Google Calendar and Microsoft Outlook, including Microsoft 365. The Free plan connects one calendar; the Individual plan connects up to six. If you have more than one calendar that matters, the Free plan will only protect one of them.
Calendars you cannot connect
- Apple iCloud Calendar: not a Calenix integration. If personal plans live in iCloud, copy the ones that matter (school pick-ups, appointments, holidays) as busy blocks into a connected Google or Outlook calendar. Many people keep their work calendar in Google or Outlook and simply view it in Apple Calendar on iPhone or Mac; our guide to Apple Calendar and online scheduling explains the set-up.
- Client Microsoft 365 accounts: a client may give you a guest account or a mailbox on their tenant, and their IT policies may block third-party apps from connecting. Ask whether you can forward invitations to your own calendar, or add manual busy blocks in your main calendar for client meetings.
Small settings that cause big problems
- All-day events: in Google Calendar and Outlook, all-day events are often set to show as free by default. If a day off or a conference should block bookings, set it to busy.
- Tentative events: tools differ in how they treat 'tentative' or 'maybe'. If a tentative hold should protect the time, mark it busy.
- Private titles: marking an event private hides its title from people who can see your calendar, but it still counts as busy. You do not need to rename personal events to protect them.
Why deciding calendar roles is worth twenty minutes
Most double bookings by people with several calendars are not software failures. They happen because a calendar holding a real commitment was never connected, or because the commitment was in a calendar the booking tool could not see. A client books Thursday at 3pm, and Thursday at 3pm was the school assembly sitting in a family calendar on your phone. Our page on how calendar sync prevents double bookings explains what sync can and cannot catch.
The opposite problem is just as common. Connect everything and your booking page fills with false busy time: the public holidays calendar, the shared family calendar with all-day reminders, the colleague's diary you subscribed to two years ago. Clients see a week with almost nothing free and book someone else.
Writing bookings to the right calendar matters for a different reason. New bookings should appear where you plan your day, alongside video links and travel time. If they land in a calendar you only check on weekends, you will miss one sooner or later.
Finally, a clear set of roles makes it easier to protect personal time. Once your evenings and school runs are reliably visible as busy, you can open availability with confidence. Our guide on how to avoid meetings outside business hours covers the availability rules that sit on top.
What a clear calendar set-up gives you
Fewer double bookings: every calendar holding real commitments is either connected or mirrored as busy.
More open time: calendars that should not block bookings are left out.
Bookings in one place: new appointments land in the calendar you actually plan from.
Private life stays private: booking pages show open times, never your event titles.
A fix for iCloud and client accounts: busy blocks cover what cannot be connected.
Easier maintenance: a short list of roles is simple to review each quarter.
Sorting your calendars in six steps
List every calendar you use — Include work, client, personal, family, side business and subscribed calendars. Note which account each sits in: Google, Outlook or Microsoft 365, or iCloud.
Give each calendar a role — Mark each one 'check for conflicts', 'write bookings to' or 'leave out'. Only one calendar should receive new bookings.
Connect the calendars you can — Connect your Google and Outlook calendars in Calenix: one on the Free plan, up to six on Individual. Start with the calendar that receives bookings.
Mirror what you cannot connect — Copy important iCloud and client-tenant commitments as busy blocks into a connected calendar, or forward client invitations where policy allows.
Fix busy and free settings — Check all-day events, tentative holds and recurring personal commitments so the ones that should block time are set to busy.
Test with a dummy booking — Look at your booking page for a week you know well. If a busy time shows as free or a free time shows as busy, trace which calendar is responsible.
Calendar role matrix
| Feature | Check for conflicts | Write bookings to | Leave out |
|---|---|---|---|
| Main work calendar (Google or Outlook) | Yes | Yes, usually the best choice | No |
| Client Microsoft 365 guest account | Yes, if it can be connected | No | If blocked, mirror client meetings as busy blocks instead |
| Personal iCloud calendar | Not directly; mirror key events as busy | No | Routine personal reminders |
| Shared family calendar | Only if you are actually needed at those events | No | Reminders and other people's plans |
| Side business calendar | Yes | Only if side business bookings should land there | No |
| Subscribed holidays or fixtures | No | No | Yes |
Good habits for people with several calendars
Pick one calendar to receive bookings and stick with it.
Connect calendars that hold commitments, not calendars you merely like to see.
Make important personal events busy, and use private visibility instead of vague titles.
Mirror school terms, holidays and medical appointments from iCloud into a connected calendar.
Ask clients before you rely on connecting their Microsoft 365 account; their IT team may say no.
Review your connected calendars when you start or finish a client engagement.
Remove calendars from accounts you no longer use, so stale events stop blocking time.
Common mistakes
Assuming the booking page can see your iCloud calendar because your iPhone shows it.
Connecting a shared family calendar and losing every afternoon to other people's reminders.
Leaving all-day events set to free, then getting booked on your day off.
Writing bookings to a client's tenant, where you lose them when the engagement ends.
Staying on one connected calendar when two or three hold real commitments.
Forgetting to disconnect a calendar from an old job, so it keeps blocking time.
Example: a freelance consultant in Sydney with five calendars
Take a fictional freelance product consultant in Sydney, Daniel, who takes discovery calls and workshops through a booking page. He has five calendars:
- Work Google calendar for his consultancy.
- Client Microsoft 365 guest account on a bank's tenant, where his weekly stand-ups live.
- Personal iCloud calendar with medical appointments and his son's swimming lessons.
- Shared family Google calendar with his partner, mostly reminders.
- Outlook.com calendar for a Saturday photography side business.
His roles. The work Google calendar checks for conflicts and receives every booking. The bank's IT team will not allow third-party apps on the guest account, so he forwards each stand-up invitation to his work calendar, where it shows as busy. Swimming lessons and medical appointments are copied from iCloud into the work calendar as private busy events. The family calendar is left out, apart from two events he attends, which he copies across. The side business Outlook.com calendar is connected to check for conflicts, so Saturday shoots block time.
He is on the Calenix Individual plan, because two connected calendars are already more than the Free plan allows. Bookings land in Google with Zoom links, and he reads them on his iPhone through Apple Calendar, which simply displays his Google account. For more on the Outlook side, see how to sync Microsoft Outlook with a booking page.
The illustrative maths: if one missed or double-booked session a month used to cost him a A$300 discovery workshop and an awkward apology, a working set-up is worth A$3,600 a year before counting the goodwill. These figures are illustrative.
FAQ
Frequently asked questions
For people with more than one calendar
Connect the calendars that matter and keep the rest out
Start free with one connected Google or Outlook calendar. Move to Individual to check up to six calendars for conflicts. No card needed.