Meeting Requests and Appointments are Off by One Hour

Last reviewed on June 18, 2013

Question:

When I send or receive meeting requests or view other people’s calendars, the appointments are off by one hour.

This is caused by incorrect time or time zone settings on one of the computers.

1. Verify all computers involved are set to the correct time, time zone and daylight savings time settings in Windows Control Panel’s Date and Time applet. You can open the Date and Time applet by double clicking on the time in the system tray.

2. Verify the settings are also correct in Outlook. Tools, Options, Preferences tab, Calendar Options button, Time Zone button.

If you are using Outlook 2010 you need to use a time zone with the correct DST settings for your location. If your location does not observe DST, do not choose a time zone that does then deselect the option to automatically update for daylight saving time. You need to use a time zone that does not observe DST.

In Outlook 2007 and Outlook 2010, if you receive an iCalendar that does not include time zone offsets in the ical, Outlook may place the appointment on your calendar using standard time, not current time. For example, if you subscribe to an Internet calendar that does not include DST information, Outlook will treat the events as referencing standard time and move them ahead an hour if they occur when DST is in effect. As a result, an appointment scheduled for noon will be on the calendar at 1 PM.

Written by

Diane Poremsky
A Microsoft Outlook Most Valuable Professional (MVP) since 1999, Diane is the author of several books, including Outlook 2013 Absolute Beginners Book. She also created video training CDs and online training classes for Microsoft Outlook. You can find her helping people online in Outlook Forums as well as in the Microsoft Answers and TechNet forums.

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