Operations
Time Zone Overlap Planner
Find fair meeting windows across 2-8 time zones with rotation ideas and DST-aware warnings.
Result
Top slot scoreboard
Overall score ranking for the strongest candidate windows.
4-week fairness rotation
How to use it
- Enter 2-8 participants with their time zones and working-hour windows, then set meeting duration, start date, date range, and slot interval. Narrow work windows and long meeting durations usually matter more than timezone count alone when overlap disappears.
- Read the ranked candidate slots with overlap score, fairness score, overall score, local start and end times, plus the 4-week rotation plan. Scores closer to 80-100 usually mean the meeting is workable, while a no-slot result means your work windows are too tight for the chosen duration.
- Judge recurring meetings by fairness, not just availability. If the same region repeatedly carries 06:00 or 22:00 local slots, the process is operationally unfair even when a legal overlap exists.
- Use the top two or three candidate windows to set a recurring schedule, then adopt the rotation plan if inconvenience cannot be shared in a single static slot. Before widening the meeting, try adding just 1 hour of flexibility to one region rather than pushing everyone off-hours.
- Re-run before daylight-saving transitions, major hiring changes, or any shift in regional work hours. Track burden by region over each quarter so one office does not accumulate the inconvenience tax by default.
Questions people usually ask
How many participants can I include?
This planner supports 2 to 8 participants and ranks deterministic overlap windows across a selected date range.
How does fairness rotation work?
The planner selects top windows while rotating inconvenience burden across weeks to avoid repeatedly penalizing the same region.
Does it handle DST changes?
Yes. It checks timezone offsets across the selected range and flags DST transitions that may shift local meeting times.
Is this tool free and private to use?
Yes. AI Biz Hub tools are free, no-signup browser tools. Inputs stay in your browser unless you choose to share a URL.
Is this professional advice?
No. Outputs are business planning estimates — not legal, tax, or accounting advice.
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Use it from code
The same calculation as a JavaScript module you can import. It runs where you import it, with no request, key or rate limit.
import { compute } from "https://aibizhub.io/engines/time-zone-overlap-planner.js";Input and output contract, TypeScript types and the guide for agents.