Timeshifter - The Jet Lag App

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552 reviews
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About this app

Create highly personalized jet lag plans based on the latest sleep and circadian neuroscience.

// Condé Nast Traveler: “Say goodbye to jet lag”
// WIRED: “Tired of jet lag? This app will help”
// The Wall Street Journal: "Indispensable app for business travelers"
// Travel + Leisure: “Game-changer for frequent fliers”

Confused about how to reduce jet lag? That’s not a surprise. You can blame it on bad advice from non-experts and many false product claims. It's time to replace the myths with real science.

The only way to reduce jet lag is to shift your circadian rhythms to the new time zone quickly. The timing of light is key for shifting your circadian rhythms.

Seeing light and avoiding light at the right time
 will shift your circadian rhythms to the new time zone. Seeing light or dark at the wrong time will shift your circadian rhythms in the wrong direction, making your jet lag worse.

How to control your circadian rhythms is not intuitive, and generic advice does not work, so we created Timeshifter.

With Timeshifter, you can create highly personalized plans based on your sleep pattern, chronotype, itinerary, and personal preferences. Each plan will reduce your jet lag by addressing the underlying cause – the disruption of your circadian rhythms – and alleviate the disruptive symptoms, such as insomnia, sleepiness and digestive discomfort.

All the features you need:

// Practicality Filter™ adjusts advice to the "real world"
// Quick Turnaround® advice for short business trips
// Pre-travel advice helps you start adjusting before departure
// Push notifications offer advice - even without opening the app

Whether you’re traveling for business or going on a vacation, Timeshifter will help you arrive at your best.

The Timeshifting® experience requires no special or expensive equipment.
Updated on
Dec 19, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

542 reviews
Lynn Arnal
March 1, 2023
I used this app for travel from Minnesota to Vietnam, a 13-hour shift. It worked perfectly going west. No perceptible jet lag at all on arrival. Going East is always harder, and within 48 hours, I was back to my normal sleep schedule. My husband didn't use the Timeshifter app and has struggled to return to his normal schedule. Well worth a try. For me, the light schedule was the most important, but I followed the suggestions as closely as possible.
6 people found this review helpful
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A Google user
May 3, 2019
Timeshifter worked great for my transition from the UK back to California time. I just followed the timeline in the app, taking in and avoiding light, enjoying and abstaining from caffeine, and getting healthy doses of sleep, sometimes with the aid of melatonin. The messaging was low-pressure (just do your best), and the notifications on my phone were helpful so I wouldn't lose track of time. At the end of my shift I had insignificant jet lag effects. I'd taken an extra day off work to recover, but I really didn't need it. I could've gone right back to work on the next day. (Shhhh!) My only complaint would be that sometimes when loading the app I would only be shown a blank white screen for at least 30 seconds... maybe even 60 seconds. I would always eventually give up waiting, close and reopen the app, and then see the soothingly designed UI after maybe a second. Hopefully this mere nuisance UI bug will be solved quickly.
17 people found this review helpful
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A Google user
September 13, 2019
I tried out the app on a recent trip to Hawaii, from the EST time zone---a 6 hour difference. The app was very easy to use: I could see the plan at any time, and I got notifications at the right times. The results were very encouraging: within a day of arriving at my destination, I was acclimated to the time change---and similarly when I got home. No more losing groggy days to jet lag! The first thing I did when I got back was to buy blue blocking clip-ons for my glasses, so I could follow the procedure even better next time. One downside was the significant latency for the app. Given what it has to do, I couldn't see any good reason for this. (But this was in Nov. 2018, so they may have fixed it since then.) All in all, I can't wait for my next trip to try it out with the blue blockers!
7 people found this review helpful
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What's new

We release updates regularly, and we're always looking for ways to make the experience better.
Let's dive into the enhancements you'll find in our latest update:

## Fixed
- Small bug fixes
- Interface improvements

If you have any feedback, or run into issues, please use the live chat in the app. We love to talk.