How it works
Add each participant by city, the planner detects your own zone and pins it first. Pick the meeting date (working out overlaps for the actual date matters: a slot that works today can be an hour off after a daylight-saving change three weeks out). The grid shows every person's local clock across 24 hours; green cells are inside their working hours and the ☾ marks the middle of their night.
The best-slot finder scores all 24 hours by how many people are inside their working window, breaking ties by the least total inconvenience, and surfaces the top candidates. Pick a slot (click a column or a candidate) to see it in everyone's local time, copy a paste-ready summary, or add it straight to your calendar. Every calculation runs in your browser using the built-in time-zone database, so it works offline and nothing is ever sent anywhere.
Frequently asked questions
Does it handle daylight saving correctly?
Yes. Every cell is computed from a single absolute instant formatted into each time zone using the browser's IANA time-zone database, so daylight-saving transitions are honoured for the specific date you choose, including the two-to-three-week window each spring/autumn when the US and Europe are briefly an hour closer than usual.
Why is my time zone pinned at the top?
The planner detects your zone from your browser and pins it as the anchor so the grid reads in a clock you know. Detection can fail behind a VPN or strict privacy settings: if the top row is wrong, just add your real city and click its “anchor” tag.
Can I share a plan with my team?
Yes: “Copy shareable link” encodes the date, participants and settings into the URL. Anyone who opens it sees the exact same grid. The link lives in the URL fragment, so it is never sent to our server and nothing is stored.
Do participant names get shared?
Only if you add them. Labels are optional and off by default; when present they are encoded into the shareable link, so avoid putting sensitive names or roles in a link you post publicly.
What about the half-hour and 45-minute time zones?
They are handled correctly: India (+5:30), Nepal (+5:45), parts of Australia (+8:45, +9:30) and the Chatham Islands (+12:45/+13:45) all render at their true offset, which many older meeting tools get wrong.