Step 2: Go to the Share group on the Home tab, and click the Calendar Permissions button.Step 3: Now the Calendar Properties dialog box comes out, please go to the Permissions section, and check one of Read permission levels according to your own needs.Two separate time zones can be displayed in the Calendar.The two time zones can be, for example, your local time zone and the time zone of a city that you often travel to.For an exchange account in Microsoft Outlook, it allows users to share their calendar free and busy information with other users.Therefore, according to the free and busy information, other users can pick out a suitable time for meeting requires easily.There are four kinds of permission levels allowing others to view the free and busy information in the selected calendar: None; Free/Busy time; Free/Busy time, subject, location; and Full Details.
I have imported the internet calendar and I can see my schedule.
Then these appointments will be marked and shown as Free, Busy, Tentative, or Out of Office, both in your Outlook and in other exchange users’ Outlook who share your calendar information.
See screen shot: Compatible with Outlook 2010 / 2013 / 2016 / Office 365 (32/64); Compatible with Windows XP, Windows Vista, Windows 7 / 8 / 10, Windows Server 2003/2008, Citrix System and Windows Terminal (Remote Desktop) Server; There doesn't seem to be a way to change the labels globally without going into the registry, but a convenient workaround is to block the time as you would for any other appointment and type "Reserved" in the appointment's "Subject" box.
The second time zone is used only to show a second time bar in Calendar view, and does not affect the way in which Calendar items are stored or displayed.
The start and end times for items in the Outlook Calendar are saved in the Coordinated Universal Time (UTC) format, an international time standard similar to Greenwich Mean Time. In both cases, the meeting is saved as starting at the same UTC time of P. If two time zones are shown, the meeting organizer's time zone is used as the reference point.