Cal.com slots API returns neighboring dates and hides buffer-blocked slots

GET /v2/slots?eventTypeId=..&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=America/Los_Angeles with cal-api-version: 2024-09-04 is the reliable way to verify what a booker actually sees. Querying start=end=Oct 8 in PT also returned an Oct 7 evening slot, so filter on the day key rather than trusting the range. Results already reflect connected-calendar conflicts and event buffers: with 15-minute buffers either side, a visible slot count can be well below the free 30-minute starts because adjacent starts collapse. Two event types on one schedule can therefore show different slots.