If you use Outlook at home (without Exchange Server), here are the instructions, and here is the full article.
For small business, home, or consumer computer users running Windows and Outlook but not Exchange Server:
1. Apply updates to Windows operating systems
on individual machines. Windows operating systems KB article 931836
2. Run Outlook Time Zone Data Update tool.
Microsoft Download Center
NOTE: The tool should be run as soon as possible after updates are applied to ensure consistent application of DST rules.
Outlook Time Zone Update tool