Using Classic Outlook on Windows for personal email, calendar, and contact management
The feature is only available at Current Channel. I asked my peers that cover Calendar to find out the latest status and update the content to reflect where it is supposed to be, Set your work hours and location in Outlook - Microsoft Support.
In the meantime, unless your company restricts your Office channel you could switch to Current Channel to use the feature. There are several approaches/tools to change channel. Here is one I used yesterday and worked well for me:
Enable Update Channel button in Outlook/Office apps.
- Close classic Outlook
- Go to this MVP article, Let users decide their Microsoft 365 Apps (Office 365) Release Channel - Robert 365
- In that article under Method 2 download the registry key officechannelexposure.zip, then right click the zip file and extract it.
- Double click on the exported registry file officechannelexposure.reg to install it.
- Start Outlook
- Click File, Office Account, click Update Channel and pick Current Channel. Office will start updating to Current Channel. If it does not start updating immediately click File, Office Account, Update Options, Update Now.
This change adds the Update Channel button when you go to File, Office Account, Update Channel.