
Scheduling
Part of Appointment scheduling software
Comparing booking rules for different service lengths
Compare appointment lengths, buffers, start intervals and shared capacity with a practical service-time map.
Compare booking rules by checking which start times each service offers and how much staff and resource time each booking protects. A short consultation, a long treatment and a service with processing time may share a calendar but need different availability rules. Write the expected slots before viewing a booking page.
Map the time each service uses
For each service, record the duration shown to the customer, preparation and clean-up time, staff needed, and whether a room or piece of equipment remains occupied throughout. Mark the latest acceptable start time. If an add-on increases the visit, decide whether it extends the booking or requires another appointment.
| Rule | What to decide |
|---|---|
| Visible duration | What time is promised to the customer? |
| Staff time | Which parts need the staff member, including preparation and clean-up? |
| Processing interval | Can staff serve someone else, and does the room remain occupied? |
| Shared resource | Must capacity be limited across several staff calendars? |
| Closing boundary | Must all preparation and clean-up finish before closing? |
A 30-minute service with 15 minutes of clean-up should not be offered 30 minutes before closing if staff must finish clean-up within opening hours. That is a business rule to check; software may handle its buffer at the edge of working hours differently.
Mapping Service Time Requirements for Booking Rules
- Account for Staff TimeInclude preparation and clean-up time needed by staff.
- Identify Processing IntervalDetermine if staff can serve others during this time and whether the room/equipment is occupied.
- Flag Shared ResourcesLimit capacity across staff calendars if multiple staff share a room or tool.
- Set Closing BoundaryEnsure all preparation and clean-up finishes before closing time, even if software allows later start.
Compare the documented controls
Square Appointments lets a business set service durations and variations, and booking add-ons can add time. Its Australian guidance places processing time and extra blocked time after an appointment in Plus and Premium. Square also offers start times based on service duration or fixed intervals. Compare the resulting slots for both a short and a long service.
Acuity Scheduling lets you add or edit services on your scheduling page and provides padding between appointments.
Calendly uses event types with durations and optional buffers. Free allows one event type; Standard lists unlimited event types. Calendly says buffers protect time around meetings, but a meeting may still be bookable at the end of working hours when its after-buffer runs beyond those hours.
That matters if the buffer represents work that must be completed before closing. Calendly's calendar conflict check should not be taken as proof that a shared physical room is reserved.
Booking Rules Comparison: Square Appointments vs Acuity Scheduling vs Calendly
- Service Duration & VariationsSquare: Set durations and add-ons; Plus/Premium allow processing time after appointment. Acuity: Edit services on scheduling page. Calendly: Event types with durations.
- Buffer & PaddingSquare: Processing time and extra blocked time post-appointment (Plus/Premium). Acuity: Padding between appointments. Calendly: Optional buffers around meetings.
- Start Time FlexibilitySquare: Based on service duration or fixed intervals. Acuity: Limited to scheduled times. Calendly: Flexible via event types, but may allow booking at closing if buffer extends beyond hours.
- Shared Resource ManagementSquare: Supports shared capacity across staff calendars. Acuity: Manual management of room/equipment. Calendly: No built-in physical space reservation; conflict check does not confirm room availability.
- Closing Time ComplianceAll systems require manual review for clean-up completion before closing. Calendly may allow bookings that extend past closing if buffer runs beyond hours.
Challenge the boundaries
Ask each supplier to show a slot that fits exactly before closing, one that fits only if clean-up is ignored, and one beside an existing long booking. Compare the public booking page with a staff-entered booking. If customers often combine services, include that normal sequence too.
Record the offered start, appointment end, protected preparation and clean-up, staff member and required resource. The useful result is a set of slots the business can deliver without hiding times its rules meant to offer. For services whose length varies by customer, agree on an exception process rather than relying on an average that makes the calendar look more precise than the work.
Testing Booking System Boundaries
- Test a slot just before closingCheck if the system allows a booking that fits only if clean-up is ignored.
- Test a slot beside a long bookingVerify no overlap in protected time (staff or resource).
- Compare public vs staff bookingEnsure staff-entered bookings reflect actual availability, not hidden gaps.
- Simulate combined servicesCheck how systems handle common customer sequences (e.g., consultation + treatment).
- Document exception processFor variable-length services, define how exceptions are managed outside averages.



