What does the free prescan check before I run anything?

The prescan runs entirely in your browser with no upload and no AI. It lists the participants it spotted from email addresses and greetings, every time-zone mention (abbreviations and city names resolved to IANA zones), and four families of flag: no time zone stated anywhere, relative dates such as “next Tuesday” with no anchor, nobody having stated any availability, and groups too large for a single overlap. Each group explains why it matters, and it costs nothing.

Does Meet Desk handle time zones and daylight saving?

Yes. Every participant is placed in a time zone and the basis is stated — whether it was stated outright, inferred from a city, inferred from an abbreviation, or defaulted. Each proposed slot carries a per-participant local-time table with daylight saving handled, and the browser independently recomputes every row with Intl and flags any row where its own wall-clock figure disagrees with the model's.

Can I get a calendar invite for the slot that works?

Yes. Each proposed slot offers a one-click add to Google Calendar or Outlook with the participants prefilled, and a downloadable RFC 5545 .ics invite built in your browser with the attendees included. The slot table also exports as CSV and the whole plan as Markdown or JSON.

What happens if the stated constraints admit no meeting time at all?

It says so instead of faking a booking. When the constraints leave no compliant slot the posture is “cannot-schedule” and the reply explains the conflict and offers the least-bad trade-offs. When a fact is simply missing the posture is “needs-confirmation” and the reply asks for it. A bundled no-overlap example demonstrates this branch without paying for a run.

What does a run cost, and can I try it without signing in?

The prescan is free and always runs client-side. The scheduling run is metered: a worst-case amount is reserved before the run and only what the run actually uses is charged, with both shown on the meter beside the run button. Three bundled examples — a clean cross-timezone thread, an ambiguous thread and a no-overlap thread — replay their saved results in full for free without signing in, so every output branch is reachable at zero cost.

Meet Desk — paste the scheduling thread, get the meeting time

The scheduling thread

Or pick a file: it is read locally, nothing uploads until you run.

Your own availability — optional; your time zone is detected automatically

Meeting title — optional

Duration

Format

Reply tone

The plan

Executive summary

Assumptions & open questions

Participants

Name	Email	Time zone	Basis	Availability

Constraints Hard constraints bind every slot; preferences rank them. Each carries the quote that establishes it.

Who	Kind	Constraint	Source quote

Proposed slots

Ranked best-first. Every slot shows each participant's wall clock, independently recomputed in your browser — add the one that lands to Google Calendar or Outlook, or download its .ics.

The reply

Prescan coverage

Next steps

Summary

Result

How it works

Nothing to hand? Load the — three people spread across New York, London and Bangalore with real constraints and a clean answer — the , where a time zone and an anchor date are missing and the honest reply asks for them, or the , where the stated constraints admit no compliant slot and the right output says so.

Paste the thread — the prescan is free

No upload, no AI: the prescan reads the thread in your browser and lists what it mechanically found — the participants it spotted from addresses and greetings, every time-zone mention (abbreviations and city names resolved to IANA zones), and the flags: no time zone stated anywhere, relative dates like “next Tuesday” with no anchor, nobody having stated any availability, groups too large for a single overlap. Each group explains why it matters. This part costs nothing and happens while you type.

The AI schedules — this is the metered part

A coordinator's pass over the whole thread: who is actually expected in the room and in which time zone (with the basis for each zone stated), every constraint attributed to its owner with the verbatim quote, hard limits separated from preferences, relative dates resolved against your current date, and up to three ranked slots that respect all of it — each with a per-participant local-time table, daylight-saving handled, plus the ready-to-send reply in each recipient's local time. When a fact is missing the posture is needs-confirmation and the reply asks for it; when the constraints admit no slot the posture says so honestly instead of faking a booking. Pricing is honest too: a worst-case amount is reserved before the run and only what the run actually uses is charged — the meter next to the button shows both.

Send the reply, ship the invite

Copy the reply or open it straight in your email app. For whichever slot lands, add it to Google Calendar or Outlook in one click with the participants prefilled, or download an RFC 5545 .ics invite — built in your browser, attendees included — plus the slot table as CSV and the whole plan as Markdown or JSON. Past runs are saved to your SkillSafe account, so they are there on your laptop and your phone: when someone answers “Tuesday doesn't work anymore”, restore, add the reply to the thread, and re-run.

A derived work of cal.diy, the community-driven open-source scheduling platform (MIT).