Facebook

Login

Support Sailonline

If you haven't already - join the SAILONLINE YACHT CLUB!

Please also consider making a donation - all amounts are greatly appreciated!

Board » Technical Support » Time zone bug

Page: 1 2 Next

I'm currently in Astana (UTC+7), instead of Brussels (UTC+2). What I do is I just change the clock of the computer, instead of changing my time zone. So I just move the clock forward 5hrs, while the time zone remains Brussls-Paris, otherwise Outlook starts to mess up my appointments.
But when I look at the UTC clock in the Sailonline clock, it gives me UTC as Astana time minus two hours. Example:
It is now 1500hrs in Astana, 10000hrs in Brussels, 0900 UTC. The clock tab on screen of the client gives 1300hrs as UTC. When I give a delayed command, I see in the list of timed commands that there the correct UTC is used.

So let me guess: the time tab calculates UTC by taking the time of the PC and the time zone the PC is set against and then calculates the offset? WHile the timed commands use the actual time of the server? So if your computer and the server are out of synch, your delayed commands could be too?

Rammed another island today, but that is because the predictive position in this game is still a game of pure chance.
Do you have Windows Vista?
There you can have 3 clocks if you left click on the time in bottom right of screen; Set (leave) your main clock @ Brussels time. set 2nd clock @ UTC and the third whereever you travel to and are at in the world.

Try it.
If it breaks, it's not strong enough!
ybw_Kingfisher said @ 2009-09-01 09:06:22:
Example:
It is now 1500hrs in Astana, 10000hrs in Brussels, 0900 UTC. The clock tab on screen of the client gives 1300hrs as UTC.
The problem may lie in the Brussels - UTC bit. 1000 Brussels is 0800 UTC, not 0900.
On second thought,I checked at http://tinyurl.com/ox3a6g (www.timeanddate.com) and it lists Astana as UTC+6 hours.

To comment on your technical bit of the question, all times are UTC both on the client side as well as the server side.
This is done to eliminate any time conversions.
So there is no relation between the time displayed and the computers clock.

The bigest factor in a incorrect delay is weather updates. They have a big influence on the speed and direction if on TWA.
And there is a certain amount of error in the predicion line, due to rounding of numbers.

Some of the interface like the prediction line, can give the impression to be exact but they do have some margins to take into account on the longer delays.

--- Last Edited by Jeroen Tiel at 2009-09-01 11:11:45 ---
I am a ex-admin of SOL who joins in from time to time.
To comment on your technical bit of the question, all times are UTC both on the client side as well as the server side.
This is done to eliminate any time conversions.
So there is no relation between the time displayed and the computers clock.
Not so: I can give you a screenprint which shows 12:00 UTC on the main clock and a delayed command to be implemented at 09:30, so which technically is long passed.

The bigest factor in a incorrect delay is weather updates. They have a big influence on the speed and direction if on TWA.
And there is a certain amount of error in the predicion line, due to rounding of numbers.

Some of the interface like the prediction line, can give the impression to be exact but they do have some margins to take into account on the longer delays.

--- Last Edited by Jeroen Tiel at 2009-09-01 11:11:45 ---


So any delayed course change is an exercice in pure luck, rather than navigational skill?

No its not just pure luck, as I explained there are some factors that can throw off a delayed command. On the short run they are reliable and on the long run they can be a bit less acurate.

Its just a factor to take into account when you use them.
I am a ex-admin of SOL who joins in from time to time.
For those in the Antipodes it would be useful to see the date displayed with the time, so we can be sure actual time difference with local time. Especially handy for starting as a mix up in days/nights can waste places quickly.
Had we started a race at: 09:09 on 09-SEP-09 we would have been without too much confusion!!
If it breaks, it's not strong enough!
a bit too much luck with all those 9's

Page: 1 2 Next

Please login to post a reply.

Races

Next Race: 00d 00h 00m


Current Races:

Kapiti Chetwodes Race 2024


For only the second time in SOL history, we have the pleasure of inviting you to the Kapiti Chetwodes Race, held in the Cook Strait region. Organised IRL by the Royal Port Nicholson Yacht Club from Wellington in New Zealand. The approximately 160nm long route, full of turning points, will take us from the bay at RPNYC around the islands of Somes, Kapiti and Chetwodes and back to the finish line at RPNYC. We have only a 26 ft Albin 79 yacht at our disposal. All this means that we will have a lot of fun, so fair winds!
Race #1864
INFO by brainaid.de
Albin 79 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
ARQ4 - ARCH - SUPSOL - SYC
Race starts: Nov 25th 17:00 Registration Open!
▶ Flash
GO TO RACE

Raja Muda Selangor 2024 - Penang to Langkawi

Welcome to the third and last online race of the Raja Muda Selangor International offshore series – a 70nm final trip further north again up the Malacca Strait from Penang to the exotic island of Langkawi, and again in Ker 40s.
Race #1871
INFO by brainaid.de
Ker 40 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: RMS - SYC
RACE CLOSE: Monday,
November 25 at 2300 UTC.
Race starts: Nov 21st 04:00 Registration Open!

▶ Flash
GO TO RACE

Raja Muda Selangor 2024 - Pangkor to Penang

Welcome to our second online offshore race in cooperation with Raja Muda Selangor International – an 80nm trip from Pangkor north to Penang up the Malacca Strait, again in Ker 40s.
Race #1870
INFO by brainaid.de
Ker 40 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: RMS - SYC
RACE CLOSE: Saturday,
November 23 at 2300 UTC.
Race starts: Nov 18th 04:00 Registration Open!

▶ Flash
GO TO RACE

Two Oceans Doublecross TIMED Race 2024

Our November Timed race takes us to Cape Town near where the Atlantic and Indian oceans meet. Our ride is a beautiful ketch, the Archer 78. Starting at Cape Town, we’ll round Robben Island, then head south to round Cape Point, up around Seal Island before heading north to round Dassen Island before returning to Cape Town. This is a TIMED race, so you may RE-REGISTER HERE to try again, after finishing a run. You will have 13 days and 11 hours to test your skill and decision making after the race opens.
Race #1872
INFO by brainaid.de
Archer 78 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ4 - TRCH - SUPSOL - SYC
RACE CLOSE: Saturday,
30 November at 23:00 UTC
Race starts: Nov 17th 12:00 Registration Open!
▶ Flash
GO TO RACE

Nassau to Bodo 2024

Prepare for the grand finale - the 6th and concluding leg of the RTW challenge, an odyssey from Nassau in the Caribbean to Bodø in Norway. Embracing a journey of 4000 nautical miles, this leg promises an exhilarating 18-day voyage. It also heralds the November installment of our prestigious Ocean Race Championship. Embark on a voyage of a lifetime, where prowess, tactics, and camaraderie unite in the pursuit of triumph. We eagerly await your presence at the starting line! May the winds be ever in your favor.
PRIZE: SMPF
Race# 1866
INFO from brainaid.de
Swan 65 PARTICULARS
WX updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ4 - OCCH - RTW - SUPSOL - SYC
Race starts: Nov 11th 11:00 Registration Closed
▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

  1. Sailonline Yacht Club Member WRmirekd
  2. Sailonline Yacht Club Member Vida_Maldita
  3. Sailonline Yacht Club Member CriticalHippo
  4. Sailonline Yacht Club Member FreyjaUSA
  5. Sailonline Yacht Club Member rafa
  6. Sailonline Yacht Club Member Kipper1258
  7. Sailonline Yacht Club Member CollegeFund
  8. Sailonline Yacht Club Member Sax747
  9. Sailonline Yacht Club Member QMaxx
  10. Sailonline Yacht Club Member BRENTGRAY

View full list

Series

Mobile Client

SYC members have the benefit of access to our mobile/lightweight web client!

The mobile client