THERE ARE SOME harsh truths you’d rather not face, like what you really look like eating a turkey drumstick, or how you sound while you sleep. Similarly, how many hours you spend on Facebook and Instagram is a potentially shame-inducing data point that for years you’ve had no real way to assess.

But today, Facebook has been widely—and quietly—rolling out a tool that lets you measure how much time you spend using both the Facebook and Instagram apps.

In the Facebook app on iOS and Android, you can find “Your Time on Facebook” buried in the “Settings and Privacy” menu. Click on More > Settings and Privacy, then scroll down to Your Time on Facebook.

There, you’ll get a bar graph of the week, with your usage time displayed by hours and minutes per day, and the average amount of time you spent each day. On Instagram, go to Your Account > More > Settings > Your Activity, and you’ll see the equivalent.

Though Facebook detailed both features in August, they’re still not fully baked at launch. The Facebook tool in particular has serious limitations, the most glaring of which is that it doesn’t factor in desktop usage at all. You can’t even access it other than in the app.

The Instagram and Facebook tools also don’t tally your total usage across devices. The numbers in the bar graph indicate only how much time you spend on Facebook or Instagram on that single device.

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