If your computer can't keep good time, it may be due to Microsoft's crummy time server. Here's a replacement that should do the trick.

You can sync your Google Calendar to the Outlook desktop app for Mac by adding your Google account and PC by importing your calendar.

There are a number of reasons a computer can fail to keep good time. It could be the result of Windows failing to connect to its time-sync server, or it could be a dead CMOS battery.