Time Guides allow you to overlay your favorite events or schedules on top of your personal calendar. You can choose to show and hide Time Guides on your day, week, and month views.

To select which Time Guides appear on your calendar, go to your calendar options and click the "Time Guides" link. Then, click the "Add/Edit" link in the Time Guides column or edit your Time Guides now.

Time Guides currently include the following categories:

Finance: Keep track of earnings release dates, stock splits, and board meeting dates for companies in your portfolio. Learn more about Yahoo! Finance.

Sports: Track your favorite sports teams from the NFL, NBA, Major League Baseball, and more. Plus, link to Yahoo! Sports team pages, scores, and game summaries from your calendar.

Groups: Keep up to date on group events for your favorite Yahoo! Groups. To learn more about setting up a group calendar, check out Yahoo! Groups.

Friends: Overlay other people's calendars on top of yours for quick reference or easy meeting scheduling. Publish your schedule of events in a Yahoo! Calendar and let others add it to their Time Guides. Learn more.

Holidays: Include U.S., Canadian, Christian, and Jewish holidays on your calendar. Learn more.

Let us know what other categories you'd like to see offered as Time Guides through Yahoo! Calendar feedback.