Google this week intends to roll out an update to its mobile Calendar apps that will allow you to add to-do reminders to your calendar.

The reminders will appear at the top of the calendar window. Unlike a calendar event, which is tied to a specific time, the reminder will carry over from day to day until you swipe it away as done.

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Calendar will know if you create to-do lists in Google Inbox, Keep, and Now and will display those reminders as well. And as you might expect, when you create a to-do item, Calendar will pull information from your contacts if the reminder relates to a person. If you tied the reminder to a specific time, Calendar will send you a notification.

Both Android and iOS versions of Calendar will receive the update. Google says it is working on adding reminders to the Web version as well.

Clifford Colby follows the Mac and Android markets for Download.com. He's been an editor at Peachpit Press and a handful of now-dead computer magazines, including MacWeek, MacUser, and Corporate Computing.