Why is my calendar showing the wrong availability?
Short answer
Wrong availability is usually a timezone mismatch, an unsynced external calendar, or buffer and travel time settings overlapping in a way that blocks slots unexpectedly. Compare the calendar's actual settings against what you expect before assuming the booking tool itself is broken.
Before you start
- Access to the specific calendar showing wrong availability.
- Knowledge of the correct working hours it should reflect.
- Access to any connected external calendar.
- Awareness of any recent buffer or travel time changes.
Step by step
- 1
Check the calendar's timezone setting
Confirm it matches the actual timezone of the team member or business location.
A timezone mismatch shifts every available slot by hours without any obvious error.
- 2
Confirm external calendar sync is active
Check the connection status of any personal or team calendar linked for conflict checking.
A broken sync either shows busy slots as open or blocks slots that are actually free.
- 3
Review working hours configuration
Verify the days and hours set for that specific calendar match what is intended.
A leftover default schedule can silently override the hours someone thinks are set.
- 4
Check buffer and travel time settings
Look at the padding before and after appointments that may be eating into visible availability.
Generous buffers stacked with travel time can block out far more of the day than expected.
- 5
Look for overlapping calendars on the same slot
If bookings pull from multiple calendars, confirm none are double-blocking the same window.
Overlapping rules can cancel out slots that should otherwise be open.
- 6
Check for holiday or exception dates
Confirm no blanket exception or holiday closure is still active from a past date range.
A one-time closure that was never removed keeps blocking every future occurrence of that day.
- 7
Test the public booking link directly
Open the live booking page as a customer would and compare it against the internal calendar settings.
This confirms whether the issue is in configuration or in how it renders externally.
What good looks like
- Availability shown to customers matches actual working hours.
- External calendar conflicts are caught before double-booking happens.
- Buffers and travel time reflect a realistic amount of blocked time.
- Timezone issues get caught before they cost a booked appointment.
Common mistakes
The ways this goes wrong in support, and what to do instead.
Assuming the timezone is correct›
The calendar was set up in a default timezone that does not match the team member's actual location.
Do this instead: Check and correct the timezone setting on the calendar itself, not just the account.
Ignoring external sync status›
A disconnected personal calendar lets double-bookings happen without warning.
Do this instead: Regularly confirm the external calendar connection is active and syncing recently.
Leftover holiday exceptions›
A single closure set for a past event keeps blocking that recurring day every year.
Do this instead: Review and remove outdated exception dates whenever setting up new ones.
Frequently asked
5 questions about fix wrong calendar availabilityRelated guides
Pick the next thing to set up, or back up a step if something here assumed work you have not done yet.
Do this next
The natural follow-on tasks once this one is working.
People usually get here from
Guides that lead into this one, in case you skipped a step.
More in Support
Nearby tasks that share the same setup and vocabulary.
Was this guide helpful?
Tell us what worked and what didn't. It shapes what we rewrite next.
You didn't get into business to be in the tech business.
Managed Tech clients hand this to us. We build it, test it, maintain it, and add to it as the business changes, so nobody on your team has to become the person who knows how the system works.