FL370
Posts: 239
Joined: Mon May 01, 2006 2:25 am

Does Daylight Savings Effect Airlines?

Sat Oct 28, 2006 10:33 am

twice a year we experince daylight savings, how does this effect airlines and their flying schedule? i mean we lose an hour once a year, and we gain an hour once a year! so how does this effect airlines and their schedule. tthanks



fl370
 
AirCop
Posts: 5553
Joined: Mon Nov 28, 2005 2:39 am

RE: Does Daylight Savings Effect Airlines?

Sat Oct 28, 2006 11:06 am

Here in Arizona, when everyone is on daylight time, our flights leave an hour earlier and when the rest of the nation joins us on standard time our flight leave later.
 
EMBQA
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RE: Does Daylight Savings Effect Airlines?

Sat Oct 28, 2006 11:23 am

Not at all since few if any passenger airlines are flying at 0200 when the clocks change.
"It's not the size of the dog in the fight, but the size of the fight in the dog"
 
GEnxPower
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RE: Does Daylight Savings Effect Airlines?

Sat Oct 28, 2006 11:31 am

It makes a difference when you have international flights. Not all country fall back on daylight savings at the same time/same day. European DST starts and ends on different days as American.

Many countries do not have Daylight savings time at all. International flights have to leave one hour early so that it will arrive "on time" and passengers can make their connections or transits.

Departure schedules are changed, pilot and crew schedules are changed. So there are some of those affects involved.
 
hawaiian717
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RE: Does Daylight Savings Effect Airlines?

Sat Oct 28, 2006 12:57 pm

Quoting EMBQA (Reply 2):
Not at all since few if any passenger airlines are flying at 0200 when the clocks change.

What about all the Hawaii -> mainland and west coast -> east coast red eye flights?

I'm not sure about what airlines do for the exact change, but I know Hawaiian adjusts their schedule for west coast flights in HNL so that they leave and arrive at their west coast destination at the same time; they just arrive and leave HNL an hour later.
 
RobertS975
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Joined: Sun Aug 14, 2005 2:17 am

RE: Does Daylight Savings Effect Airlines?

Sat Oct 28, 2006 1:08 pm

Quoting EMBQA (Reply 2):
Not at all since few if any passenger airlines are flying at 0200 when the clocks change.

Well, this statement is NOT true. There are dozens of US domestic and several Canadian domestic redeye flights from the western side of the continent to the eastern side. There are also many dozens of flights across the Atlantic overnight. There are long distance overnite flights to/from South America.
 
ordpark
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RE: Does Daylight Savings Effect Airlines?

Sat Oct 28, 2006 1:50 pm

Well, it is a convenient time for airlines to do a major schedule change...redeyes get in either an hour earlier or later, depending on what time of year it is, requiring some staffing adjustments....
 
HikesWithEyes
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Joined: Sat Jan 24, 2004 10:54 am

RE: Does Daylight Savings Effect Airlines?

Sat Oct 28, 2006 3:26 pm

Each time change in spring or fall, there are always passengers and
crew members who forget to change their clocks, so in the fall, some
people arrive to the airport too early.
In the spring, people miss their flights, and I have seen several flights
delayed because a crewmember was late.
First, benzene in my Perrier, and now this!
 
Charliejag1
Posts: 226
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RE: Does Daylight Savings Effect Airlines?

Sat Oct 28, 2006 3:48 pm

Of course DST does not affect airlines in any way. While you're at it, ask if DST affects anybody on earth at all.
 
pilottim747
Posts: 1577
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RE: Does Daylight Savings Effect Airlines?

Sat Oct 28, 2006 3:53 pm

Quoting EMBQA (Reply 2):
Not at all since few if any passenger airlines are flying at 0200 when the clocks change.

It doesnt affect aircraft that are flying as pilots and air traffic control use UTC time for every. The only thing that changes is how a pilot calculates UTC time from local time (in the Central time zone we fall back from -5 hrs to -6 hrs).
Aviation Photographers & Enthusiasts--Coordinate your life.
 
swissgabe
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Joined: Tue Jan 11, 2000 4:57 am

RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 3:53 am

Quoting EMBQA (Reply 2):
Not at all since few if any passenger airlines are flying at 0200 when the clocks change.

Not talking of ALL other WORLDWIDE flights out there. You in the Staates to have as well International flights leaving your country and flying to your place from places such as Europe, Asia, Africa, South America etc.

Quoting Fl370 (Thread starter):
twice a year we experince daylight savings, how does this effect airlines and their flying schedule? i mean we lose an hour once a year, and we gain an hour once a year! so how does this effect airlines and their schedule. tthanks

It does affect all flights flying from one time zone to another where the daylight time switch isn't done or where it will be done at another date. Flights in that case would leave one hour earlier/later or would arrive one hour behind/in front of the departure.
Smooth as silk - Royal Orchid Service /// Suid-Afrikaanse Lugdiens - Springbok
 
satx
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RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 4:39 am

Quoting EMBQA (Reply 2):
Not at all since few if any passenger airlines are flying at 0200 when the clocks change.

That's pretty damn funny. I sure hope you were joking when you said that. Please tell me you were joking.
Open Season on Consumer Protections is Just Around the Corner...
 
Olympus69
Posts: 1571
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RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 5:02 am

There is considerable confusion in the Spring and Fall with Intercontinental flights. This is because there is a period of a week or more in each season when Europe and North American areas are split between Standard and Daylight Saving time. It will get worse next year when North America adds 3 weeks of DST in the Spring, and one in the Fall. I assume a similar situation exists between North America and Asia. Southern Hemisphere countries change the opposite way. It must be hard to keep track of all the variables.
 
greasespot
Posts: 2955
Joined: Sat Apr 24, 2004 10:48 am

RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 6:17 am

Easy....Planes just have to speed up in the case of losing an hour (sprinG and slow down when they gain an hour (fall).  wink 

GS
Sometimes all you can do is look them in the eye and ask " how much did your mom drink when she was pregnant with you?"
 
Cubsrule
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RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 6:28 am

A lot (all?) of DL's late night South America departures (EZE, SCL, etc.) do not change their departure times in the U.S., so flights arrive in South America 2 hours later in the Northern Hemisphere winter than in the Northern Hemisphere summer. Of course, the long ground times (the planes sit all day) allow for this.
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nzrich
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RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 6:52 am

Only major problem is staff sleeping in when the clocks go forward..
"Pride of the pacific"
 
Tom12
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RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 7:09 am

Here in the UK all airports work to GMT (or UTC, whatever you prefer). Aviation doesn't change time here at all.

Tom
"Per noctem volamus" - Royal Air Force Bomber Squadron IX
 
supa7E7
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RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 7:23 am

Redeyes suffer during time changes. In Spring, check out March 10/11 Redeyes. Departure is normal, but duration is 1 hour extra. Arrival is 1 hour late. This means airlines cannot sell as many connections thru their East Coast hubs. Furthermore, the airlines likely have these aircraft double-booked on March 11. Red-Eyes come in late, but other departures are supposed to be unaffected. In truth, you will see some delays at ATL, EWR, because of late redeyes.

Tonight, however, it is the opposite. All the nation's red-eyes will arrive 1 hour early, and the aircraft will sit for an extra hour Sunday morning. That is easier to deal with.
"Who's to say spaceships aren't fine art?" - Phil Lesh
 
swissgabe
Posts: 5147
Joined: Tue Jan 11, 2000 4:57 am

RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 7:36 am

Quoting Supa7E7 (Reply 17):
duration is 1 hour extra

Well, I would say that duration of the flight remains the same.
Smooth as silk - Royal Orchid Service /// Suid-Afrikaanse Lugdiens - Springbok
 
2travel2know
Posts: 2236
Joined: Sun Apr 10, 2005 7:05 am

RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 7:56 am

Foreign airlines from countries that don't observe Daylight Savings Time often face major airport delays on their flights since that hour later may coincide with heavy airport traffic (ORD, JFK come to mind) and slots not available or more expensive.
I don't work for COPA Airlines!
 
Tristarsteve
Posts: 3363
Joined: Tue Nov 22, 2005 11:04 pm

RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 9:21 am

Quoting Tom12 (Reply 16):
Here in the UK all airports work to GMT (or UTC, whatever you prefer). Aviation doesn't change time here at all.

And all European airlines introduce the Winter timetable on this Sunday morning. All the times are changed. My morning flight to UK leaves at 0700 instead of 0710 etc etc.

Luckily nowadays the whole EU changes on the same day.
15 years ago, the UK changed a month later than the rest of Europe, and chaos ensued.

Anyway Sunday morning a lot of overnight flights from the US will arrive an hour early, and surprise someone.!!
 
legacytravel
Posts: 385
Joined: Sat Aug 20, 2005 2:05 pm

RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 10:55 am

[quote=ANCFlyer,reply=19]And twice a year we have this same stupid assed thread . . . . [/qu
I agree. The more I read about this thread the more I want to pull what little hair I have left out.
Regards,
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cloudyapple
Posts: 1261
Joined: Sun Jul 24, 2005 7:01 am

RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 11:20 am

Quoting TristarSteve (Reply 23):
And all European airlines introduce the Winter timetable on this Sunday morning. All the times are changed. My morning flight to UK leaves at 0700 instead of 0710 etc etc.

Wrong - all scheduling WORLDWIDE (even in the US) is done in UTC and then converted back to the local time whether it is summer or winter. And dont you need to worry about the complexity of these conversions - computers do all that.

The fact that the airlines' seasonal timetables start to coinside with clock changes kills 2 birds with 1 stone. By implementing schedule and time changes on the same day, you only have 1 day of potential confusions instead of 2. The fact that some countries change their DST on different dates is a different matter.

But all flightcrew and ATC (wherever in the world) work in UTC. Flightplans are also in UTC - everything in ops is in UTC indeed. The idea is to have 1 standard time for aviation to avoid any of these obscure and inconsistent daylight saving time changes. So DST changes do not affect the scheduling or flight ops. Well unless the crew turns up late...
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Bookin
Posts: 75
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RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 12:04 pm

As a Dispatcher, tonight I will be working a 13 hour shift instead of my usual 12.
It's all good, some of our pilots sent fresh coffee beans from Colombia!

Cheers!
B747-400LCF - B747-200ST!!
 
supa7E7
Posts: 1360
Joined: Fri Aug 27, 2004 2:05 am

RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 2:29 pm

Quoting Swissgabe (Reply 18):
Well, I would say that duration of the flight remains the same.

Hahaha. If you're riding on the plane, yes, normal flight duration. But the flight schedules (if you take a moment to examine them) do indeed specify +1 hour duration, +1 hour late arrival for redeyes on March 10/11 2007. Take a look yourself. It has to be that way.
"Who's to say spaceships aren't fine art?" - Phil Lesh
 
robsawatsky
Posts: 477
Joined: Thu Dec 18, 2003 7:07 am

RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 3:11 pm

Quoting Cloudyapple (Reply 22):
Wrong - all scheduling WORLDWIDE (even in the US) is done in UTC and then converted back to the local time whether it is summer or winter. And dont you need to worry about the complexity of these conversions - computers do all that.

Correct, but doesn't answer the question. Yes we all (or should) know we don't really lose or gain an hour of time, it is just the reference to local time that changes but it most definitely has an impact on scheduling, particularly between jurisdictions that do/don't observe DST or observe it on a different schedule.
 
iairallie
Posts: 2326
Joined: Thu May 20, 2004 5:42 am

RE: Does Daylight Savings Effect Airlines?

Sun Oct 29, 2006 3:30 pm

Same as any business that operates on a 24 hour 7 day a week schedule.
Enough about flying lets talk about me!
 
FXfan
Posts: 83
Joined: Tue Oct 24, 2006 6:40 am

RE: Does Daylight Savings Effect Airlines?

Mon Oct 30, 2006 7:27 am

I'd like to see how it affects the cargo airlines. Anyone know?