Calendar rules

Two clients ring within a minute of each other. The first is offered 2

; the second is offered 2, and the twenty minutes between the end of one visit and the start of the next never gets sold. Whether that's a rounding error or twenty minutes of takings is decided by one dropdown.

Settings → Calendar holds the scheduling rules the whole salon follows.

Time slots

Appointment starts every is the step your day is cut into. It does two things, and it's worth separating them:

• On your calendar, it's the grid — the lines a booking snaps to when you drag it, and the resolution the day is drawn at.
• On your booking page, it's the set of start times a client is offered. A 15-minute interval offers 2
  , 2
  , 2
  ; a 30-minute one offers 2
  and 2
  , and everything else quietly isn't there.

You can pick 5, 10, 15, 20, 30 or 45 minutes, or an hour. A new salon starts on 15.

What it does not do is decide what's allowed. Anyone booking inside RewireBox can type an exact time — 2

if that's when the client is arriving. The interval shapes what's offered, which is why it matters most to the people who never speak to you.

Picking one

Match it to your shortest real service, not to how you'd like the diary to look.

A salon whose quickest visit is a 20-minute fringe trim on a 30-minute grid is throwing away every gap under half an hour — and gaps under half an hour are most of them. Going the other way, a 5-minute grid on a menu of two-hour colours gives a client a wall of near-identical times to choose between, which is its own kind of unhelpful.

15 minutes suits most hair salons. Barbershops and nail bars, where a 20-minute service is normal, are usually better on 10 or 20.

Per location

Once you run more than one address, Time slots for appears above the dropdown. Leave it on All locations (default) to set the business-wide value, or pick a location to give that site its own rhythm — a branch of barbers on 20-minute starts under a business default of 15.

A location set to its own interval can be put back with Use business default, and it then follows any later change you make to the default. See Where your salon operates.

The rest of this screen, and the one next door

The first card, Double-booking, decides whether a stylist can hold two appointments at once — and, with it on, guarantees you're asked to confirm every time rather than doing it silently. That, and the processing time that makes it worth having, are in Overlaps and processing time.

Quick tools, reached from the Calendar card on the Settings hub, is the bulk one: mark several staff not working across a date range for a holiday closure, and clear it again the same way. It lives in Working hours and time off, with the team's own hours, because that's what it's really about.