SYNTHETIC REFERENCE — Find a meeting time across busy calendars
Not an independently observed product run.

Common availability: 13:30–14:00 UTC.
Proposed meeting: 09:30–10:00 New York / 14:30–15:00 London.
Status: proposed; no invitation sent.

FAILURE CASE
One attendee says “3 PM” without a time zone. Pass: ask for the zone. Fail: treat it as the organizer’s zone.