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"Beating Jet Lag"
United Airlines Magazine
June 2003
"The best approach is a blend of several strategies. The StopJetLag Plan combines light therapy, melatonin, diet, and other treatments in a customized schedule for each traveler."
Home > Why Use StopJetLag > Exact Flight Times Matter

Your Exact Flight Times Matter

Why your exact flight times and connections are important to avoiding jet lag.

Other methods give you a recommendation based only on the flight day, without considering the flight times. In contrast, StopJetLag considers flight times and the point at which they occur during your daily cycle. This can make a profound difference in the proper handling of your body clock adjustment.

Let's take two different flights you could take from San Francisco to Paris (one leaving early in the morning and the other in the evening) to help explain the importance of flight times to the proper recommendations for shifting to a new time zone.


San Francisco to Paris (morning vs. evening flights)

Scenario #1: Tuesday Departure - Wednesday Arrival

Depart     Arrive  
San Francisco 8:10am   New York 4:40pm
New York 6:15pm   Paris 6:30am

Scenario #2: Tuesday Departure - Wednesday Arrival

Depart     Arrive  
San Francisco 9:00pm   Paris 3:30pm

Personal Preferences Used:

  • Sleep Patterns
    • Normal Bedtime: 10:30pm
    • Wakeup at 6:30am
  • Meals:
    • Breakfast: 7:00am
    • Lunch: 12 noon
    • Supper: 7:00pm

Discussion of the two scenarios

The first scenario entails leaving San Francisco early in the morning and changing planes in New York City. Since the connecting flight leaves New York at 6:15pm Eastern Time (3:15pm Pacific Time, 11:15pm in Paris), at that point you can begin behaving on Paris time by setting your watch to 11:15pm and sleeping as much as possible until 6:30am when you arrive in Paris. This will allow you up to 7 hours and 45 minutes of sleep during your flight to prepare you for a full day in Paris upon your arrival.

However, the second scenario, which involved meetings in San Francisco all day on Tuesday, must be handled differently. By the time you leave San Francisco at 9:00pm it is already 5:00am in Paris. Attempting to reset your body clock to Paris time on this flight would force you to wake up in 2 to 3 hours to have breakfast on Paris time and subsequently suffer severe sleep deprivation. It is much better to sleep on San Francisco time on this flight and after your arrival in Paris (7:30am San Francisco time) switch to Paris time (3:30pm).

As you can see the different flights result in completely different recommendations even though the end goal is the same: to adjust to Paris time as quickly and efficiently as possible... and StopJetLag’s patented system makes the difference. For every flight you take, these types of issues should be considered in order to arrive at the best measures to take to eliminate jet lag.


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12672 Skyline Blvd.
Woodside, CA 94062
Telephone: 650-851-4484
Fax: 650-851-2457
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