Organizing, editing, and coordinating meetings and events within Microsoft Teams calendars
In new Outlook for Windows, there is no zoom slider for Calendar, and Ctrl + mouse wheel zoom is not supported there.
To fit more of the workday on screen, use Time scale on the toolbar to change the time intervals shown. This helps display more time slots, but it does not zoom the entire calendar view.
If the goal is to focus on working hours:
- Open Calendar.
- Go to View > Calendar settings.
- Open Work hours and location.
- Set the days of the work week.
- Select Save.
This sets work hours so off-hours are distinguished, but Outlook does not fully hide non-working hours. In classic Outlook, a workaround is to switch to Day or Work Week view, scroll to the start of the workday, and save a custom view so the calendar opens focused there.