Free · 30 seconds

What's your social jetlag?

Most people fly to another time zone every weekend. They just never leave the house.

Your body clock doesn't know it's Saturday. If you go to bed and wake up later on your days off, it shifts, and on Monday morning you drag it back. Put in your times and see how far you travel each week.

Find your number
Work days

A typical night before work.

Free days

A typical night before a day off, no alarm.

Put in all four times to see your number.

0h

0hSleep on work days
0hSleep on free days
0hYour weekly average

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Want to see what's actually going on in your own nights? The Sleep Lab · small group, starting 2 November

Why it matters

The Monday that feels like Wednesday.

Social jetlag is the gap between when your body clock runs on work days and on free days. The bigger it is, the more your week starts with the same feeling as stepping off a plane.

Educational information, not medical diagnosis. The number is calculated from the midpoint of your sleep on work days versus free days, the standard way social jetlag is measured in research.