Important Notice:We have made the tough decision to say goodbye to the Foursquare City Guide mobile app, effective December 15, 2024, with the web version to follow in early 2025. Visit our FAQ for more information or to download our Swarm app.
By knowing our internal biological time, and being able to control it, we can improve our performance, health and safety. We can minimize jet lag and bring back those lost days
"At Timeshifter jet lag calculator, we are leading the way in making all of this possible. We are integrating circadian science into our everyday lives."