Morning larks vs night owls: does your body clock distort time?

NCT ID NCT07677111

Recruiting now Knowledge-focused Sponsor: The Hong Kong Polytechnic University Source: ClinicalTrials.gov ↗

First seen Jun 30, 2026 · Last updated Jul 01, 2026 · Updated 1 time

Summary

This study investigates whether the match between a person's chronotype (morning or evening preference) and the time of day influences how they perceive time. Healthy adults who are clear morning or evening types complete perception and cognition tasks both early in the morning and late in the evening. By testing participants across three countries, the study aims to see if circadian effects on time perception are universal.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to: If it works, this could reveal how our body clock shapes our sense of time, potentially informing work schedules or therapies for circadian rhythm disorders.
What could go wrong: This is an observational study with no treatment, so it won't directly change medical practice. Results may vary across cultures and may not apply to everyone.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for CHRONOTYPE are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

circadian rhythm sleep disorder sleep disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

CHRONOTYPE CIRCADIAN RHYTHM SLEEP TIME PERCEPTION

Contacts and locations

Locations

Child Development Centre
RECRUITING

Hong Kong, Hong Kong

More trials for these conditions

Other studies related to the condition(s) this trial covers.