Research and development of the circadian cycle uneder the influences of hormons. How the natural cycle is adapting the sleedp and the day to international mobility and global commuting. Assessing the influence witht a model of study based on logistic of the supply chain, the travel time with Airbus or Boeing aircrafts on a return flight from Paris to New York with a time gap accross the Atlantic Ocean. How data, technology can influence leisure time, working time...and performance

1. Career map
● Research Development
● How the gap in Time across the Atlantic
Ocean can influence your leisure/working
time/sleep time during a day, a week...
● Travel
● Globalization
● Distances
● data

2. https://www.sciencenews.org/article/cracking-body-clock-code-win
Melatonine
TIM Protein
+
–
X
T
+ A
B M
- B
+ a
M (A >0,B > 0) T (-A <0,- B < 0)
+
- A
M’
M’ (A=+1,B= 0)
+1
-1
T’ (A = -1, B = 0)
T’
T
T’’
M’’
M’’= M (min)= M (0,0) T’’= T (max)= T(0,0)
Tim protein (T)
reduces
(Melatonine (M)
midday
midnight

3. Melatonine = Sleep Hormon
Melatonine
Night
time
Day time
https://www.teamdenuit.fr/e-magazine/oeil-du-coach/cycle-circadien-lumiere-horloge-biologique

4. CIRCADIEN CYCLE (AND
WORKING CYCLE)
July 20th, 2018
Paris
4 July, 2018
New York
NY day Paris day
12PM
12AM
12AM
Working day
(and evening
works); including
meal times and
transport)
4 hours
sleep
8AM
8PM
UN
Work
(in
HQ)
UN: United Nations
HQ: Headquarters
:Transport + meal(s) ≈ 2 hours
UN meeting outside UN HQ (country embassies) ≈ 2 hours
10PM
6AM
U
N
E
W
D
UNEWD: UN Executive Working Day
GG
GG: Going GlobalGG
Going home (including late meal) ≈ 2h00
(including 15 minutes shower)
S
S Sleeping time (4 hours)

5. Going Global
(Working from New York)
● UN Working activities out side UN Building
● Consulting services: Late work for transmission of UN
messages around the world (Networking & social media
communication), reporting, feed-backs, regulations,
unformal training...
● Preparation of next day UN works (in UN building or in a
foreign embassy (Germany, Japan...)
● Locations: NYC (Bryant Park or Business Library)
80% -99% UN activities 1% personnal profesionnal retreatment

6. How the time gap is translated in my sleep between
(July 21, 2018 and Aug 6th, 2018)
● Time Gap between NYC & Paris City:
Δ T= 6 hours
New
York
City
(NYC)
R¼ = 0.25
S
Δ T
12AM
6AM
12 AM: When I go to bed in New York
(06 AM: I start to work in Paris) Δ T

7. When I go to bed in New York 12 AM
[I start to work in Paris (6 AM)?]
12 AM
6AM
GG
NY Paris
Assumptions due
to Δ T = 6 hours
Real
experience
Late
working
Bulac
8PM
10PM
Bulac
8PM
10PM
Sleeping
Time
Going
Home +
Meal
Meal
Transport
1 hour
GG
8PM
12AM
10PM
4 H.
1 H
1H

8. 8PM
6AM
GG
BULAC
GOING
GLOBAL
2H00
1H00
1H00
Δ T= 6 hours
New-York- Paris
Time Gap

9. Collision of activities between NYC
activities and Paris activities due to the
time gap of 6 hours (as I did not re-
schedule my activities when I returned
to Paris from new York, so my NY
activities in New York time line where
translated in time with 6 hours advance
in Paris timeline
Going
Global
New York
T + 6
DAY (X) , T ime (Y) DAY (x) , Time= Time (Y) + 6 hours ( Δ T)
T= 8PM
T= 12AM
Going
Global
Paris
T
T= 08PM + 6 H00 = 2AM
T= 12AM + 6 H00 = 6AM
TIME EQUATIONS BETWEEN PARIS AND NEW YORK CITIES

10. heures avant d’avoir envie de dormir
J’en air conclu que cette dernière
activité avait retrouvé son cadre
temporel à Paris (Going Global à
Paris) et que si après 5 heures je
commencais à dormir cel
correspondait à l’heure ou je
termine de travailler à Paris, c’est à
dire après avoir quitté Bulac

11. It is a problem of logistics or operation management
(with stock and flows)
● If you sleep in the plane, it means that you are storing your energy, so when reach a
foreign country, your body behaves as if you were in your domestic country (because of
the energy saved during the flight, by having a good night sleep in the aircraft)
● Opposite, if you stay awaken in the aircraft, you are likely to fall asleep, when arriving in
the foreign country. It could be difficult to resist to fall asleep, what can create some
flexibility in the timing of your agenda, when you arrive in the New country, is the
predicted time arrival. If you arrive at night, it is fine, you will be able to prolonge your
sleep, as if you were home, and be awaken in the morning like New York city people,
ready to go to work, as if you were in Paris
● Opposite, if you arrive during the day, and you did not sleep in the aircraft, it is likely that
if you go to work the same day, that you will need lots of cup of coffeee or energy drinks
to keep you awake during the first working day.

12. Explication with timelines
Timeline (New York)
(A, t1)
(A, t2)
6H00
(A, t1+6H00)
(A, t2+ 6H00)
Timeline (Paris)
T = 12AM T = 6AM

13. Explanation with the time equations
● New York
● Going Global (A):
● T1= 8PM
● T2= 12AM
● Paris
● Going Global (A)
● T1= 2AM
● T2= 6AM
Sleeping time in Paris before the trip to New York
Conclusion: if I work in Paris
when I should sleep, it means
my working time in Paris has
been displaced at later time
with a time transfer related to
the time gap between New
York and Paris

14. Imagine that your sleep is
comparable an energy (electrical) battery
Before the trip
(good battery)
100%
energy
25%
energy
Flight to New York
Paris
After the trip
(bad battery)
You did not sleep in the
aircraft (8H00 flight)
New york
Arrival
time
Day
time
Evening
time
Energy spent during the flight in the Aircraft
(if you did not sleep)

15. Sleeping time capital (Budget)
Mon Tue Wen Thu Fri Sat Sun
8 hours/day
Sleep losses Sleep gains
12hours
Sleep deficit
17hours
Aircraft Trip sleeping potential (from Potential zero sleep to potentially 8 hours sleep)
(Boeing/Airbus New York -Paris)
Sleep-in
Sleep-out
3h00
Weekly Sleeping Time Stock
5 h00
During the flight During the flight
4.5 hours

16. Week 1 Week 2
M T W T F S S
+ 2 hours
sleep
12 hours
M T W T F S S
Paris New York
GMT
0
0 6
4.5hours
8 hours
6.5 hours
Between 22h00 and 24h00 (3 hours losses) because the passenger did not sleep in the plane (watch TV,
listen to music, speaks with the stewardess, drink, walk to the toilets... at midnight Paris time, the sleep
capital is 9h00 (12hours regular sleep saved during his usual week (workig week and week-end) on Sunday
before changing time zone. At midnight (Paris) or New York 4 AM (day +1), the client has 9 hours energy left-
so as he slept 5 hours after midnight (he gain in total (minus the losses 3 hours (+ 5 for the gains after 4 AM
– 3 after 00AM)

17. GMT = 0GMT= - 2 GMT + 4Summer Time
Sunday Monday
(Day + 1)
(Paris)
(New York)
22H00
12AM

18. GMT
0
-1-2 +1 +2 +3 +4
Hour
sleep
Losses
Hour
sleep
Gains
Total sleep curve during the flight
Aircraft type: Boeing or Airbus
Fly time = 8 hours
Aircraft speed = 1000 kms/hour
Aircraft elevation= 12 kms
Min 1.5 hour
Sleep time
Max. 8 hours
Until Greenwhich Time
(GMT) the lost of sleep from Paris cannot go above 1.5 hour, then if the
passenger sleep it will be able to recover 6?5 hours sleep
The quality sleeps of passengers during a
transatlantic flight with Boein or Airbus from
Paris to New York during the summer time

19. Working time in Paris before and
after the trip to New York
Before the trip to
New York
GG was
BULAC closure
(10PM)
Last train
Metro Line 14
(1AM)
3H00 (work outside BULAC : Gare
St Lazare (Going Global, WIFI, ...)
1H00 = Time to find sleep + 20
minutes transport from Gare St
Lazare, to Olympiade
St Lazare (1h00)
Olympiade
(1h20)
20’
Sleeping
Time
(2h00)
40’
Time Gap is 6 hours
+ 1H00

20. 1 hour
between 7.30 to have my dinner and
8.30 when I return to BULAC, it is
one hour without working
Before sleeping:
- I have 6 hours of the time gap between Paris and New York minus
the 5 hours spent before sleeping, which are used to go and have a
dinner, to work after Bulac is closed, and to commute from St Lazare,
to time to sleep, which is a total of 5 hours
Therefor thus, I slept at 5 AM instead of 2PM
A time gap in my sleep of 3 hours
My sleep was 3 hours late, when I return to New York, instead of
sleeping at 2AM, I slept at 5AM, and spent all the night between
BULAC closure and 5AM to work all the night

21. My real working day after New York was very long
Time to
sleep
New York
(in...)
Paris (before New York)
New York
Time
Paris
Time
8AM2AM
10 PM2AM
Observations:
(*) When I went to New York, the first night, I slept at the same time I used to sleep in Paris
T= 2AM in Paris = 2AM in New York, however, there was a time difference of 6 hours.
The trip by plane was 8 hours, but because of the time gap of 6 hours, in fact I travel only 2 hours
And the first day, to find my new home I slept at 6 Am, which is the 4hours energy I kept from
Paris (as I slept in the plane (and timeline in France is ahead the timeline in New York)
(*)
Did not sleep at 8
But 5 AM, the first
night in Paris

22. How can the time travel influence
my sleep, if I sleep in the plane
during a flight from New York to
Paris, with atime gap of 6 hours
Influence of timeline of France
ahead of timeline of New York

23. T (NY) T (PARIS)
t = tot = to+ 2h00
ΔT = 6 hours
Δt = 8 hours
Δt = 8 hours
ΔT = 6 hours–
Δt = 2 hours
t-- to = 2h00
T = 4AM t = to= 2h00
t=to T= to + 14h00
t = 11PM 12AM + 13H00=
t= 1PM or t= 13h00
Earth rotation
New
York
Paris
Speed of aircraft: 1000 km/ h
Elevation = 12 km