ENGINE • TIMEZONES • CONFLICT‑FREE

Smart availability engine

Qlynic turns scheduling rules into patient‑ready time slots. It merges shifts, subtracts blackouts, removes bookings, then steps by duration + gap—all displayed in the clinic timezone.

How it works Try the simulator

Correctness

Zero overlap slots (server‑validated)

Timezones

Store UTC, display clinic time

Speed

Deterministic and fast

The rule stack (in order)

The engine behaves like a clean pipeline: start with working time, subtract exceptions, then split into bookable slots.

1) Shifts define the day

Weekly working windows per provider form the base availability.

09:00–12:00 13:00–17:00

2) Blackouts subtract time

Vacation days, half days, or slot‑level exceptions carve out time instantly.

10:00–11:00 14:00–15:00

3) Bookings remove overlaps

Existing appointments are removed so patients never see conflict slots.

4) Duration + gap stepping

Slots are stepped across free ranges: duration, plus a configurable buffer gap.

5) TZ-safe labels

Store in UTC, convert for display and reminders using the clinic timezone.

6) AI scope (optional)

Provider scope text helps match visit reasons—without weakening booking rules.

Try the engine logic

Toggle shifts and blackouts, then compute free ranges and slots. This mirrors the same union/subtract behavior used by admin timelines and patient booking.

Live preview (09:00 → 17:00)

Shift Blackout Free Slots

Free ranges

Slots generated

Timezone

Clinic time

Why clinics trust the engine

Built for correctness first—then speed and UX polish.

Conflict‑safe

Slots never overlap shifts/blackouts/bookings. Server validation double‑checks.

Fast and deterministic

Predictable calculations that scale with busy calendars.

Reminder‑ready

Correct time conversions keep reminders and reschedules on schedule.

Patient‑friendly

Patients see only truly available times—clean, simple, and trustworthy.

Use Smart Availability in your clinic

Start with one provider, define shifts, and watch the booking page stay conflict‑free.

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