Calendar and Countdown is a free Chrome extension with some handy calendar and task management features.

Click C&C’s address bar icon and a full year calendar appears, along with week numbers and links to view different years.

If you’ve some major event coming up, click that date and give it a text description and colour code. The colour code is visible on the calendar, and hovering your mouse over that date displays the text, as a reminder.

Set the most important of the dates as your “Primary”, and Calendar and Countdown’s icon displays a countdown of the days until it’s due.

Hovering your mouse over any calendar date displays some useful stats: it’s the nth day of the year, there are x days until the end of the year, it’s y days from now, z days until your next highlighted date, and so on.

Hover your mouse over a date for some useful stats

There are handy bonus functions. For example, click one date, hold and drag to another, and you’re told how many days you’ve highlighted.

The extension also has an array of configuration options, from calendar and date formats, to your preferred week start day, icon styles, badge colours and more.

None of this is what you’d call powerful, but Calendar and Countdown performs its few functions very well, it’s extremely easy to use, and – amazingly – doesn’t require any Chrome permissions at all.

Calendar and Countdown is a free extension for Google Chrome.