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National Lose the Jet Lag Day – January 17, 2023

Ever struggled with jet lag?

Jet lag is caused when the sleep-wake and light-dark cycle shifts too quickly for the circadian clock in your brain to keep up, disrupting almost all biological systems in your body, and often making the start and end of any trip feel exhausting. 

On January 17, we celebrate National Lose the Jet Lag Day. As we start making travel plans for the year ahead, it’s the perfect day to learn more about jet lag science and how to “timeshift” to adjust more quickly to new time zones so you can experience more fulfilling and productive travel.

This day is sponsored by Chase, which helps people get the most out of travel by giving them better experiences through card rewards and benefits. United and Chase have launched a nationwide pledge and Sweepstakes* designed to help people take on jet lag – the nemesis to great travel – and are rewarding people who commit to getting the most out of their trips with amazing prizes. 

On National Lose the Jet Lag Day, we acknowledge jet lag’s significant human and financial costs – from poor concentration and reduced productivity to less enjoyment and weakened immune function. According to United’s partners at Timeshifter®, the key to beating jet lag the scientific way is to properly time light exposure and light avoidance, which are the most important time cues for resetting the circadian clock. Coupled with advice on sleep and nap timing and optional caffeine and melatonin use, Timeshifter’s jet lag app which will help reset your body clock more quickly than normal so you don’t miss a beat when you travel. 

Let’s celebrate with Chase and United by learning how to avoid jet lag to make this an even more exciting and productive year of travel!

National Lose the Jet Lag Day timeline

1965
First Study on Jet Lag

The Federal Aviation Administration (FAA) published its first study on Jet Lag, 14 years after jet passenger service was born.
Learn more here.

1966
The Rise of “Jet Lag”

The term "jet lag" was first used in a Los Angeles Times article on February 13, 1966.

2017
Nobel Prize on Circadian Rhythm Discovery

The Nobel Assembly at Karolinska Institute awarded the 2017 Nobel Prize in Physiology or Medicine jointly to Jeffrey C. Hall, Michael Rosbash, and Michael W. Young for their discoveries of molecular mechanisms controlling the circadian rhythm. Learn more here.

2018
417 Million Travelers Were Affected by Jet Lag

According to the International Air Transport Association (IATA), there were 448 million long-haul passengers in 2018, and according to a survey conducted by Conde Nast Traveler, 93% of long-haul travelers struggle with jet lag.

2018
Timeshifter Launches its Jet Lag App

Timeshifter launched its first version of their jet lag app. The app is now the most-downloaded and highest-rated jet lag app in the world.

2019
United Airlines Partners with Timeshifter

United Airlines becomes the first airline in the world to offer a science-based jet lag solution to their passengers.

2022
New Cardmember Miles Bonuses Launch

The United Family of Cards’ new cardmember miles bonuses launch. See current offer details in FAQ section below.

2023
96.4% of Travelers Using Timeshifter Report No Severe Jet Lag

Based on more than 80,000 post-flight surveys, 96.4% of travelers who followed Timeshifter's advice said they didn’t struggle with severe or very severe jet lag. Travelers who didn’t follow their Timeshifter advice were 16 times more likely to report very severe jet lag.

2023
First Ever National Lose the Jet Lag Day

The United Family of Cards from Chase debuts National Lose the Jet Lag Day to shine a light on jet lag science and help travelers adjust rapidly to new time zones!

National Lose the Jet Lag Day FAQs

What is the best way to tackle the underlying cause of jet lag?

Use the Timeshifter app to create personalized jet lag plans based on your sleep pattern, chronotype, itinerary, and personal preferences. The app was developed with world-renowned scientists based on the latest research in sleep and circadian neuroscience. Based on more than 60,000 post-flight surveys, travelers who followed Timeshifter’s advice versus travelers who didn’t follow their Timeshifter plan were 16 times less likely to report very severe jet lag.

What is the Jet Set & Reset pledge & Sweepstakes about?

The Jet Set & Reset pledge and Sweepstakes launched by The United Family of Cards from Chase is the perfect way to kick off your New Year travel resolutions and leave jet lag in 2022.

People can take the pledge to enter the Sweepstakes*, and learn more about jet lag and how to overcome it at jetsetreset.chase.com.

*No purchase, payment, obligation or financial disclosure is necessary to enter or claim a prize. A purchase/payment will not increase your chances of winning. The Jet Set & Reset Sweepstakes begins on 1/11/23 at 9:00:00 AM Eastern Time (“ET”) and ends on 2/7/23 at 5:00:00 PM ET. Sweepstakes is open to all legal residents of the fifty (50) United States and the District of Columbia (having a valid Tax Identification Number (TIN) or Social Security Number (SSN)) who are eighteen (18) years of age or older at the time of entry and are a United MileagePlus® member. The total maximum retail value of all prizes is $62,719.91. Limit: One (1) prize per person/United MileagePlus® number. All prizes may not be awarded. Void in Puerto Rico and where prohibited or restricted by law. The Sweepstakes is subject to the Official Rules. For complete details and Official Rules go to https://jetsetreset.chase.com. SPONSOR: JPMorgan Chase Bank, N.A., 201 N. Walnut Street, Wilmington, DE 19801.

How to Celebrate National Lose the Jet Lag Day

  1. Book a United Flight

    The United Family of Cards invites anyone interested in traveling to book a United flight to a destination that crosses two or more time zones. Book a flight here.

  2. Pledge to Take On Jet Lag & Enter the Sweepstakes

    The best way to take on jet lag is to participate in the Jet Set & Reset pledge and Sweepstakes*! If you’re a United MileagePlus member, enter here to take the Jet Set & Reset pledge where you will automatically be entered into a sweepstakes for a chance to win one of three prize categories: 

      -One (1) winner will receive a 12-month Timeshifter subscription and 1 million United MileagePlus miles, the ultimate prize for more and better travel experiences.
      -Eight (8) people will receive a 12-month Timeshifter subscription and 500K United MileagePlus miles.
      -500 pledge takers will win a 12-month subscription to the Timeshifter app, which provides users custom plans for managing jet lag.

  3. Learn More About the United Family of Cards from Chase

    Each card from The United Family of Cards from Chase is unique. However, all allow Cardmembers to earn miles, special benefits and unmatched experiences. Special benefits may include United Club access, free checked bags, flight credits and discounts, among others. If you decide to become a United Cardmember, you'll get rewards everywhere you go and with every purchase you make. Take the first step and learn more.

A Few Facts About Jet Lag, According To Timeshifter

  1. Jet Lag Symptoms

    There are several symptoms of jet lag, including: fatigue, sleepiness, digestive upsets, impaired judgment and decision-making, memory lapses, irritability, apathy, and weekend immune function. These symptoms often result in reduced productivity, compromised safety, and less enjoyment.

  2. Flying East or West Makes a Difference

    Whether you find it easier to travel east or west depends on your chronotype (whether you are an early bird or a night owl)! When we travel west, we need to delay our circadian clock to a later time and lengthen our day. When we travel east, we need to advance our circadian clock to an earlier time and shorten our day. Night owls (about 75% of people) have a circadian clock with a day length longer than 24 hours, so they find it easier to travel west, as they are 'going with their clock', not against it. Early birds (about 25% of people) have a circadian clock with a day length shorter than 24 hours. This is the equivalent of naturally traveling a little bit east every day and so they find it easier to travel east.

  3. Controversial Use of Medications

    Sleep meds might knock you out on the flight, or help you fall asleep faster in the hotel, but they don’t shift the circadian clock and could lead you to miss seeing light at the right time, which is the real scientific solution to tackling the underlying cause of jet lag. Sleeping medications are not necessary if light-dark exposure is timed properly to reset your circadian clock — once the clock is reset, you should be able to sleep at your normal time.

  4. The Key to Quick Adaptation is Timed Light Exposure

    Surprising to many, light is the most important time cue for resetting your circadian clock. Managing when to see light and when to avoid light is critical to adapting to new time zones quickly. The right light exposure at the right time can significantly accelerate your adaptation. Seeing light at the wrong time — as often recommended by non-experts — will make your jet lag worse.

Tips to Take on Jet Lag, According to Timeshifter

  1. Make a Plan

    With the Timeshifter jet lag app, you get personalized jet lag plans based on your sleep pattern, chronotype, itinerary, and personal preferences for caffeine and melatonin use.

  2. Manage Light Exposure

    The right light exposure at the right time can significantly accelerate your adaptation. Seeing light at the wrong time will make your jet lag worse.

  3. Selective Caffeination

    Using caffeine “little and often,” and then stopping after lunch, will optimize the benefits and minimize the negative effects on sleep.


    These statements have not been evaluated by the Food and Drug Administration. Timeshifter is not intended to diagnose, treat, cure or prevent any disease, and is intended for healthy adults, 18 years of age or older. Timeshifter's jet lag app is intended only for passengers — not for flight crew on duty.

National Lose the Jet Lag Day dates

YearDateDay
2023January 17Tuesday
2024January 17Wednesday
2025January 17Friday
2026January 17Saturday
2027January 17Sunday

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