Meeting overlap helper
Find the overlapping time window between two people's availability — a quick way to spot when a meeting is actually possible.
Result
Overlapping window
Overlap length
How to use this tool
- Enter both people's available time windows.
- Read the overlapping window (if any) and its length.
Assumptions
- Compares clock times as two same-day windows; it does not convert time zones or handle windows that span overnight.
Technical details: what the fields mean
- Person 1 available from
person1Start - When the first person becomes available.
- Person 1 available until
person1End - When the first person is no longer available.
- Person 2 available from
person2Start - When the second person becomes available.
- Person 2 available until
person2End - When the second person is no longer available.
Methodology
Overlap start = the later of the two start times. Overlap end = the earlier of the two end times. If the overlap end is after the overlap start, that's the shared window; otherwise there's no overlap.
Worked example
Person 1: 09:00–15:00, Person 2: 13:00–17:00
Inputs: Person 1 available from: 09:00, Person 1 available until: 15:00, Person 2 available from: 13:00, Person 2 available until: 17:00
Result: 13:00–15:00 (120 minutes)
Practical guidance
- For more than two people, apply this pairwise — find the overlap of the first two, then overlap that result with the third person's availability, and so on.
Common mistakes
- Assuming any shared hour on both calendars means the exact same window is free — always double check both start and end times overlap, not just the general day.
FAQs
How do I find a meeting time that works for two people?
Enter both people's availability windows above — the overlapping time (if any) is the window that works for both.
Last reviewed: 2026-10-11
Handles two people and one same-day window each. It does not account for time zones, multiple people, or overnight windows; use a full calendar tool for those cases.
This tool provides an indicative estimate, based on the assumptions stated above.
Theme and tool preferences, along with saved and recently used lists, are stored only in this browser.