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Chronotype quiz

Find out whether your body runs early, late, or in between, from when you actually sleep on workdays and days off. Four times and two quick answers. No signup needed.

On workdays

I fall asleep around

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I wake up at

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On days off

I fall asleep around

Drag or scroll to adjust. Tap the time to type.

I wake up at

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Workdays in a usual week

I use an alarm on days off

Days off are any days you do not have to be up at a set time. If an alarm still ends your sleep on those days, the result is less reliable.

Your chronotypeThe sun marks the middle of your sleep on days off.

Days off, 12:30 AM to 9:00 AM.

Intermediate

Chronotype

Your body's natural midpoint of sleep: 4:24 AM. That is the middle of your sleep on days off, adjusted for sleep you catch up on after the work week. Intermediate covers midpoints 3:30 to 5:00 AM.

Natural midpoint
4:24 AM
Social jetlag
2 h
Average sleep
7 h 45 min

Where you sit, earliest to latest

4:24 AM
  1. Definite early
  2. Moderate early
  3. Intermediate
  4. Moderate late
  5. Definite late

What this changes: your plan times these to your workday clock, the hours you have to keep.

  1. 1From 6:30 AMMorning light outsideIn the first hour after your workday wake.
  2. 2By 3:00 PMLast caffeine8 hours before your workday lights out.
  3. 3From 9:00 PMLower the lights2 hours before your workday lights out.

Know your type, then plan your day

Your chronotype says when your body leans. Calibrate turns your wake and lights-out times into a daily plan of light, caffeine, and wind-down moves around your real schedule.

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Related reads: Does sleeping in on weekends make up for lost sleep? and How to fix your sleep schedule with light timing.

How the chronotype quiz works

What it reads

The middle of your sleep on days off 1

What it adjusts for

Catch-up sleep after the work week

Where it places you

One of five bands, earliest to latest

Learn more

The quiz follows the Munich ChronoType Questionnaire, developed by Till Roenneberg and colleagues, which uses the midpoint of sleep on days off as its marker of chronotype 1,3. Days off are used because an alarm is not deciding when the night ends.

If you sleep longer on days off than on workdays, part of that is catching up, and catching up pushes the midpoint later. The quiz works out your average sleep across the week from your workday count, then moves the days-off midpoint earlier by half of the extra sleep. That corrected midpoint is what places you in a band. Calibrate draws the bands at 2:30, 3:30, 5:00 and 6:00 AM.

Why your type is not fixed

Chronotype moves with age. In a large questionnaire sample it got later through the teenage years and then earlier again from about age 20 2. Light moves it too: a week of camping with only natural light shifted people's body clocks about two hours earlier 4.

Learn more

Indoor days give the body clock weak light in the morning and plenty of light late at night, which tends to pull it later. More daylight in the morning and dimmer evenings pull the other way. Your band is a description of how you live now, not a fixed label.

Chronotype and social jetlag

The gap between your sleep on workdays and on days off has its own name, social jetlag. Later types tend to have bigger gaps, because a typical working day asks them to be up well before their body would wake 3. The social jetlag calculator shows yours on its own, and the morning sunlight guide covers how light timing works on an ordinary morning.

Chronotype quiz FAQ

What is a chronotype?

Your chronotype is where your body clock sits against the clock on the wall: whether you naturally sleep and wake earlier or later than most people. This quiz follows the Munich ChronoType Questionnaire approach, which reads it from the middle of your sleep on days off, when an alarm is not setting the end of the night.

Am I a night owl?

Night owl is the everyday name for a late chronotype. If your natural midpoint of sleep lands at 5:00 AM or later, this quiz puts you in one of the two late bands. It is a position on a scale, not a fixed personality type, and most people sit somewhere in the middle.

Why does the quiz ask about days off and workdays?

Sleep on days off shows your timing without an alarm, so it is the main input. Many people sleep longer on days off to catch up on the week, which pushes the midpoint later than their body clock alone would. The quiz uses your workday sleep and the number of workdays to take that catch-up sleep out before placing you on the scale.

Can you change your chronotype?

Partly. Chronotype shifts with age: in a large questionnaire sample it got later through the teenage years and then earlier again from about age 20. Light also matters. When people camped with only natural light for a week, their body clocks moved earlier. A steady wake time and morning light outdoors are the usual places to start.

How accurate is this chronotype quiz?

It is an estimate from the times you enter, not a lab measurement of your body clock, and it works best if you sleep at night and have days off without an alarm. It is wellness education, not medical advice or a diagnosis.

References

  1. Roenneberg T, Wirz-Justice A, Merrow M (2003). Life between clocks: daily temporal patterns of human chronotypes. Journal of Biological Rhythms, 18(1), 80-90. doi.org/10.1177/0748730402239679
  2. Roenneberg T, Kuehnle T, Pramstaller PP, et al. (2004). A marker for the end of adolescence. Current Biology, 14(24), R1038-R1039. doi.org/10.1016/j.cub.2004.11.039
  3. Roenneberg T, Pilz LK, Zerbini G, Winnebeck EC (2019). Chronotype and social jetlag: a (self-) critical review. Biology, 8(3), 54. doi.org/10.3390/biology8030054
  4. Wright KP Jr, McHill AW, Birks BR, et al. (2013). Entrainment of the human circadian clock to the natural light-dark cycle. Current Biology, 23(16), 1554-1558. doi.org/10.1016/j.cub.2013.06.039

This quiz is for wellness education and gives an estimate, not medical advice. It does not diagnose or treat any condition. If you have ongoing trouble sleeping or staying awake, talk with your health care provider.

Chronotype Quiz: Am I a Night Owl? | Calibrate