Setting your hours, buffers and limits
Schedules, date-specific hours, holidays, free time before and after a meeting, and daily limits.
Schedules
Your hours live under Scheduling, Availability. You start with one schedule, the default. Press New schedule to add another, such as Evenings, give it a Time zone, and press Make it the default if it should be. Used by lists the meeting types that book from it; a meeting type picks its schedule under When people can book.
Weekly hours: tick a day and set its hours, add another span with Add hours, and use Copy to every day. Switch between List and Month to see the month with each day's hours.
Different hours on a date
Under Date-specific hours, pick a date and press Not available for a day off, or Different hours to set other hours for that day. In the Month view, click a day to do the same.
Buffers and limits per meeting type
In a meeting type's Limits and buffers: Free time before (min), Free time after (min), and At most a day (0: no limit). Buffers are blocked in the host's calendar too. Calendar rules lets a meeting type be booked over events whose title contains words you list, such as Focus time or Hold.
Holidays and company limits
Settings, Holidays and limits (a Company setting) picks a country's holidays, each of which can be switched off; adds your company's own days off with Add the day; and sets Meetings a day, all meeting types together. Nobody in the company can be booked on a holiday or a day off.