OpenHour guide

How OpenHour compares availability

OpenHour converts the schedules people choose to share into busy and free windows, aligns those windows over the same date range, and surfaces the overlap. The original calendar remains the source of truth, and privacy settings determine whether friends see event labels or only availability.

By OpenHour product guide · Updated August 19, 2026

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How it works

Collect schedule signals
Connected calendars, class imports, and manual blocks become the availability inputs you control.
Normalize the same time window
OpenHour compares participants against the same dates instead of treating separate screenshots as evidence.
Show useful overlap
The result focuses on the windows the selected people can actually use for a plan.

Privacy remains part of the calculation

OpenHour needs the time boundaries of a busy event to calculate availability. Friends do not need the private title. The schedule preview makes that distinction visible before you rely on it.

Missing information stays visible

A participant with no personal schedule is marked as missing schedule information. That protects the group from interpreting “no data” as “free all day.”

Common questions

Does OpenHour read every calendar?

You choose the supported calendar sources and individual calendars that OpenHour uses.

Can availability change after a plan is made?

Calendar data can change. A confirmed plan has its own time and RSVP state, while future comparisons use the latest available schedule data.

Keep exploring

smart scheduling · privacy and availability sharing · find time with friends