Availability and hours decides when your clients can book you. It's one switch, Check availability, plus the hours you work each day.

Set your working hours

From Home, tap the menu button in the top right.
Scroll down and tap Availability and hours. On iPad, it's in the sidebar under Company.
Turn on Check availability. Your working hours only show, and only apply, while this is on.
Under each day you work, tap Add time. It starts as 9:00 AM to 5:00 PM.
Tap a time to change it. Tap Add time again to add a second range, like a morning and an evening shift, or tap the red button to remove one.
Tap the ✓ to save. Your hours aren't saved until you do.

What Check availability does

When it's off (this is how every company starts):

Clients can request any day, at any start time between 7:00 AM and 8:00 PM.
Your working hours, your calendar and any Busy or Holiday time are ignored.
Clients are told you'll let them know if you're available, and you accept or decline each request.

When it's on:

Clients can only choose days that have working hours.
They can only choose start times where the whole service fits inside your hours.
Times that clash with appointments you already have are hidden. That includes requests you haven't answered yet.
Your travel buffer, special hours, and Busy and Holiday time all apply.

Check availability is on but no day has hours. Clients then can't pick any date at all, and they aren't told why. Add hours to the days you work, or turn Check availability off.
A day with no hours can't be booked while Check availability is on.
Client booking is turned off. Check Menu > Client booking > Allow client booking.

None of this limits you. You can book any appointment at any time yourself, and Walkies only shows an Overlap warning if it clashes with another one.
The Check availability switch saves as soon as you tap it. Your hours save when you tap the ✓.
Hours are for the whole company. If you have a team, a time is offered when at least one team member is free.
Boarding, overnight stays and other multi-day bookings follow your working days, but they aren't blocked by other appointments, Busy or Holiday.
To leave time between appointments, see How do I add a travel buffer between appointments?
To change your hours for one date or take a day off, see How do I add special hours or a day off?
To let clients pick an arrival window instead of an exact time, see How do I set up appointment windows?
Only admins and sub-admins can change these settings.