There is a daylight saving time display "bug" that affects both Outlook for Windows and Outlook for Mac. It's not really a bug, but a limitation of the capabilities of the time scale and only affect people who start the week on Sunday. It's also more noticeable if you use Outlook for Windows with two time zones enabled and the default zone is west of the secondary zone. There are also display issues when the time zones switch to (or from) daylight saving time on different dates.
In all situations, opening the appointment will show the correct time.
Solution: Use the work week view, the day view, or start the week on Monday… or use any view that doesn't start on Sunday.
When Outlook starts the week on the Sunday the week the time changes, the time scale will use the scale in effect when the clock rolls over to Sunday, not the time scale that is in effect most of the day. When you use the week view, all events the entire week will appear to be off by an hour when viewed in the weekly calendar.
If you happen to use dual time zones in Outlook for Windows and your default time zone is west of the second zone, an extra hour is added to the time scale offset for the Sunday DST goes into effect.
After installing the June 13 2017 security update for Outlook 2007, iCloud is not working in Outlook.
Attachments won't open after installing Microsoft Outlook's June 13 2017 security update.
How to easily insert today's date and/or current time into the Message or Notes field of any Outlook item.
If your Outlook.com account is set up in Outlook 2013 or Outlook 2016 and it has stopped syncing, you need to remove the account from Outlook and use auto account setup to reconnect the account as a Microsoft Exchange account.
After your outlook.com account is moved to the new Outlook.com server you'll need to remove the Outlook Connector account from Outlook 2010 and add it back using auto account setup.
Outlook 2007 and 2010 holiday file (HOL) has the wrong date for the US Election Day.