Trtl Jet Shift
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About this app
JetShift helps you arrive feeling human.
Jet lag happens because your body clock is still running on home time. JetShift works out exactly how to shift your sleep and meal times — gradually, in the days before you travel — so that by the time you land, your body is already adjusting to your destination.
How it works
Tell JetShift your home city, destination, and travel dates. Add your usual sleep and meal times. JetShift does the rest — generating a day-by-day schedule across three phases:
Pre-trip: gradually shift your bedtime, wake time, and mealtimes toward your destination's timezone, at a comfortable pace of up to an hour per day.
During the trip: follow a schedule locked to local time at your destination.
Post-trip: ease back to your home routine over the same number of days.
Daily log
Check in each day to record when you actually woke up, went to sleep, and ate. Rate your sleep quality to track how well the adjustment is working.
Built for real travel
JetShift handles the tricky stuff: large east-west timezone gaps, half-hour and quarter-hour offsets (India, Nepal, Chatham Islands), and daylight saving time transitions. Whether you're crossing two time zones or twelve, JetShift finds the most efficient adjustment path.
Your data stays on your device
JetShift works entirely offline. Everything you enter — your trip details, routine, and logs — is stored locally on your device and never transmitted anywhere. There are no accounts, no sign-up, and no internet connection required.
Simple and focused
No subscription. No ads. No unnecessary features. Just a clear, practical schedule to help you make the most of every trip.
Jet lag happens because your body clock is still running on home time. JetShift works out exactly how to shift your sleep and meal times — gradually, in the days before you travel — so that by the time you land, your body is already adjusting to your destination.
How it works
Tell JetShift your home city, destination, and travel dates. Add your usual sleep and meal times. JetShift does the rest — generating a day-by-day schedule across three phases:
Pre-trip: gradually shift your bedtime, wake time, and mealtimes toward your destination's timezone, at a comfortable pace of up to an hour per day.
During the trip: follow a schedule locked to local time at your destination.
Post-trip: ease back to your home routine over the same number of days.
Daily log
Check in each day to record when you actually woke up, went to sleep, and ate. Rate your sleep quality to track how well the adjustment is working.
Built for real travel
JetShift handles the tricky stuff: large east-west timezone gaps, half-hour and quarter-hour offsets (India, Nepal, Chatham Islands), and daylight saving time transitions. Whether you're crossing two time zones or twelve, JetShift finds the most efficient adjustment path.
Your data stays on your device
JetShift works entirely offline. Everything you enter — your trip details, routine, and logs — is stored locally on your device and never transmitted anywhere. There are no accounts, no sign-up, and no internet connection required.
Simple and focused
No subscription. No ads. No unnecessary features. Just a clear, practical schedule to help you make the most of every trip.
Updated on
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
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No data collected
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What’s new
JetShift 1.0 — Initial Release
Enter your trip details and get a three-phase plan: adjust before you leave, stay on track at your destination, and ease back into your home routine after you return. Shifts are capped at 60 minutes per day and rounded to 15-minute intervals so changes feel manageable. DST and fractional timezone offsets are handled automatically.
No account required. No cloud sync. No analytics. Everything stays on your device.
Requires Android 7.0 or later.
Enter your trip details and get a three-phase plan: adjust before you leave, stay on track at your destination, and ease back into your home routine after you return. Shifts are capped at 60 minutes per day and rounded to 15-minute intervals so changes feel manageable. DST and fractional timezone offsets are handled automatically.
No account required. No cloud sync. No analytics. Everything stays on your device.
Requires Android 7.0 or later.
Everyone
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About the developer
COOLSIDE LIMITED
dev@trtl.co.uk
3 Cadogan Street
GLASGOW
G2 6QE
United Kingdom
+44 141 585 0200