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DPChallenge Forums >> Current Challenge >> Time zone question
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10/03/2006 09:56:55 PM · #1
I've searched the forums but can't seem to find what I'm looking for.I'm in Australia so Roll over is on wednsday at 2pm but that puts my date a day ahead if I take a photo on the wed morning. Do I need to change the date in my camera to a day behind, that will be painful for family shots I'll be forever changing the date. And when I enter a challenge do I put the date recorded on my camera even though it's a day ahead of the challenge ending?

Can the Aussies help please.
10/03/2006 09:58:21 PM · #2
Don't worry about it.
The SC puts time differences into consideration when validating photos.
10/03/2006 09:59:12 PM · #3
You'll be ok - your profile shows Australia, they will take that into account. Just make sure to stay within the correct time frame as per server, regardless of the time/date for YOU.
10/03/2006 10:04:06 PM · #4
I used to have a problem if an image was captured on the day of rollover as the system wouldn't accept it. I contacted admin and they replied to put it in the site date in the drop down menu but make a note in the about that it was taken on such and such a date Australian time.


10/03/2006 11:02:27 PM · #5
Phew, thank you all very much for your help, appreciated.
10/04/2006 02:15:27 AM · #6
Originally posted by Beetle:

You'll be ok - your profile shows Australia, they will take that into account. Just make sure to stay within the correct time frame as per server, regardless of the time/date for YOU.

Just to add a bit to this...

As Karin says, make sure to stay within the server time zone when taking the image -- but make sure your camera is set for your local time zone. The SC look at the time of the image, adjust for time difference between where you are and where the server is and DQ if it falls outside the challenge dates. Even when travelling abroad, the advice is to keep your camera set to your home local time.

David
10/04/2006 08:10:22 AM · #7
So this means that when in Asia or Austraia, we have to take the pictures 8 to 10 hours before deadline? In one of the last challenges, I took a picture about 1 hour before deadline, uploaded 6 minutes before and unsubmitted 30 seconds before deadline!

My camera is in UTC, which is 4 or 5 hours ahead of server time, I believe. And there was no problem submitting it?
10/04/2006 08:22:44 AM · #8
Originally posted by B74A:

So this means that when in Asia or Austraia, we have to take the pictures 8 to 10 hours before deadline? In one of the last challenges, I took a picture about 1 hour before deadline, uploaded 6 minutes before and unsubmitted 30 seconds before deadline!

My camera is in UTC, which is 4 or 5 hours ahead of server time, I believe. And there was no problem submitting it?

You'd probably be better off setting your camera for local time rather than UTC. Or, since DPC measures challenges by it's own server local time (Virginia, USA), sync your camera clock to the time stamp at the bottom of every DPC page.
10/04/2006 11:08:14 PM · #9
Originally posted by strangeghost:

Originally posted by B74A:

So this means that when in Asia or Austraia, we have to take the pictures 8 to 10 hours before deadline? In one of the last challenges, I took a picture about 1 hour before deadline, uploaded 6 minutes before and unsubmitted 30 seconds before deadline!

My camera is in UTC, which is 4 or 5 hours ahead of server time, I believe. And there was no problem submitting it?

You'd probably be better off setting your camera for local time rather than UTC. Or, since DPC measures challenges by it's own server local time (Virginia, USA), sync your camera clock to the time stamp at the bottom of every DPC page.


I change time zone several times a week, even across the date line. That would be too difficult, and I would never know the real time of a picture - had I remembered to change the time, or not? Now I just have to remember where it is taken, and I can always go back for the local time ...


10/04/2006 11:11:59 PM · #10
In that case, all I can advise you to do is make sure that you put the location of the picture shot. Don't put "kitchen table" "front yard" "out of my car window", but rather the city, district, province or whatever it may called where you are.
10/10/2006 08:10:49 AM · #11
It says in my profile that all pictures are UTC/GMT time ... but, to make life easier for everyone I will try as much as possible to get close to a deadline :-)


08/25/2008 10:28:49 PM · #12
I agree!! I want to use UTC/GMT time on my camera because otherwise when I travel across time zones (and change the camera time) it will no longer be possible to sort the pictures in the actual order they were taken (unless you preserve the original file names and the sequential numbering is not interrupted).

If there are enough of us who want to use UTC/GMT, why can not the SC allow us to, as long as we state ahead of time that it is the time zone we use?

Sincerely,
Colin
08/25/2008 10:48:31 PM · #13
It's one more good reason to justify buying a second camera, so that I can shoot challenge images with the one set local time, and keep the other on whatever time I like at the moment. : )
Seriously though, I can see where changing the time in your camera would scramble the images in your time based filing system. I use iPhoto and had to deal with images from 4 Fuji cameras at the same time while on vacation with my family recently. I had to sort them by the camera models in the exif files to see who shot what.

lucky me, I live in the server time zone.
08/25/2008 11:24:01 PM · #14
Originally posted by skylen:

I agree!! I want to use UTC/GMT time on my camera because otherwise when I travel across time zones (and change the camera time) it will no longer be possible to sort the pictures in the actual order they were taken (unless you preserve the original file names and the sequential numbering is not interrupted).

If there are enough of us who want to use UTC/GMT, why can not the SC allow us to, as long as we state ahead of time that it is the time zone we use?

Sincerely,
Colin


This could potentially allow you to use images that were actually shot prior to challenge announcement based on the time set in camera.

In order for the SC to validate properly they would also need to know your real time zone and make the adjustment when validating.


08/25/2008 11:25:58 PM · #15
Originally posted by skylen:

I agree!! I want to use UTC/GMT time on my camera because otherwise when I travel across time zones (and change the camera time) it will no longer be possible to sort the pictures in the actual order they were taken (unless you preserve the original file names and the sequential numbering is not interrupted).

If there are enough of us who want to use UTC/GMT, why can not the SC allow us to, as long as we state ahead of time that it is the time zone we use?

Sincerely,
Colin


So do it. There's nothing posted here or elsewhere that says you can't.
08/26/2008 02:12:57 PM · #16
Originally posted by cpanaioti:

Originally posted by skylen:

I agree!! I want to use UTC/GMT time on my camera because otherwise when I travel across time zones (and change the camera time) it will no longer be possible to sort the pictures in the actual order they were taken (unless you preserve the original file names and the sequential numbering is not interrupted).

If there are enough of us who want to use UTC/GMT, why can not the SC allow us to, as long as we state ahead of time that it is the time zone we use?

Sincerely,
Colin


This could potentially allow you to use images that were actually shot prior to challenge announcement based on the time set in camera.

In order for the SC to validate properly they would also need to know your real time zone and make the adjustment when validating.

Why would they also need to know the time zone where you physically took the photo? All times such as challenge deadlines, start/stop times, etc. are absolute times (expressed in "server time", which is US Eastern time zone). UTC is an absolute time that simply provides a stable reference as an absolute time. It is simply another time zone which is 5 hours ahead of US Eastern time (but does not respect daylight savings time, although there are many regions in the world that also do not utilize DST).

Basically, since DPChallenge is concerned with absolute time -- challenge deadlines are not "midnight in whatever time zone you are in" -- then UTC actually makes the most sense. Furthermore, those of us who travel (and particularly people who travel between time zones as part of their daily commute) may find it completely impractical and counterproductive to constantly change the camera's time.
08/26/2008 02:14:08 PM · #17
Originally posted by violinist123:

Originally posted by skylen:

I agree!! I want to use UTC/GMT time on my camera because otherwise when I travel across time zones (and change the camera time) it will no longer be possible to sort the pictures in the actual order they were taken (unless you preserve the original file names and the sequential numbering is not interrupted).

If there are enough of us who want to use UTC/GMT, why can not the SC allow us to, as long as we state ahead of time that it is the time zone we use?

Sincerely,
Colin


So do it. There's nothing posted here or elsewhere that says you can't.


Well, ClubJuggle disagreed with me back in 2004 on this.
08/26/2008 02:18:54 PM · #18
Originally posted by skylen:

Originally posted by cpanaioti:

Originally posted by skylen:

I agree!! I want to use UTC/GMT time on my camera because otherwise when I travel across time zones (and change the camera time) it will no longer be possible to sort the pictures in the actual order they were taken (unless you preserve the original file names and the sequential numbering is not interrupted).

If there are enough of us who want to use UTC/GMT, why can not the SC allow us to, as long as we state ahead of time that it is the time zone we use?

Sincerely,
Colin


This could potentially allow you to use images that were actually shot prior to challenge announcement based on the time set in camera.

In order for the SC to validate properly they would also need to know your real time zone and make the adjustment when validating.

Why would they also need to know the time zone where you physically took the photo? All times such as challenge deadlines, start/stop times, etc. are absolute times (expressed in "server time", which is US Eastern time zone). UTC is an absolute time that simply provides a stable reference as an absolute time. It is simply another time zone which is 5 hours ahead of US Eastern time (but does not respect daylight savings time, although there are many regions in the world that also do not utilize DST).

Basically, since DPChallenge is concerned with absolute time -- challenge deadlines are not "midnight in whatever time zone you are in" -- then UTC actually makes the most sense. Furthermore, those of us who travel (and particularly people who travel between time zones as part of their daily commute) may find it completely impractical and counterproductive to constantly change the camera's time.


They need to know the time zone of the primary residence (real time zone). If we could arbitrarily choose a time zone then we could potentially be able to use photos that were shot prior to the challenge announcement.

Message edited by author 2008-08-26 14:20:52.
08/26/2008 02:26:21 PM · #19
Originally posted by cpanaioti:

They need to know the time zone of the primary residence (real time zone). If we could arbitrarily choose a time zone then we could potentially be able to use photos that were shot prior to the challenge announcement.


Why do they care where the primary residence is? If I declare, before the challenge begins, my camera time to be in UTC, how is that giving me more opportunity to cheat?
08/26/2008 02:28:15 PM · #20
Originally posted by skylen:

Originally posted by cpanaioti:

They need to know the time zone of the primary residence (real time zone). If we could arbitrarily choose a time zone then we could potentially be able to use photos that were shot prior to the challenge announcement.


Why do they care where the primary residence is? If I declare, before the challenge begins, my camera time to be in UTC, how is that giving me more opportunity to cheat?


That depends on where your real time zone is. UTC is ahead of server time. If your real time is ahead of UTC then you could potentially take a photo prior to the announcement of the challenge for use in the challenge as you have intentionally turned your camera time back.

Message edited by author 2008-08-26 14:30:16.
08/26/2008 02:30:44 PM · #21
Originally posted by skylen:


Well, ClubJuggle disagreed with me back in 2004 on this.


That was 4 years ago. Ample time for mastery of the addition and subtraction required to figure out someone's local time based on their offset from GMT.
08/26/2008 02:31:04 PM · #22
Look at it this way:

It's simply impossible for someone to make and enter an image AFTER the challenge closes. I mean, the challenge closes when it closes, at the same instant of absolute time no matter where you are in the world. You can't enter an image after that point in time.

The only potential problem you have is taking a picture on "your" Tuesday/Sunday, seeing the new challenge topic on "your" Wednesday/Sunday, and getting confused and thinking somehow you're legal to enter an image that was captured before the challenge was even announced.

You can't ever do that. None of us can, anywhere in the world.

R.
08/26/2008 02:31:54 PM · #23
Originally posted by cpanaioti:


If your real time is ahead of UTC then you could potentially take a photo prior to the announcement of the challenge for use in the challenge as you have intentionally turned your camera time back.


This is what people in Australia do right now. Damn them and their crystal balls.
08/26/2008 02:32:01 PM · #24
Originally posted by violinist123:

Originally posted by skylen:


Well, ClubJuggle disagreed with me back in 2004 on this.


That was 4 years ago. Ample time for mastery of the addition and subtraction required to figure out someone's local time based on their offset from GMT.


Hence needing to know someone's real time zone (residence) offset to UTC.
08/26/2008 03:11:02 PM · #25
Originally posted by cpanaioti:

Originally posted by violinist123:

Originally posted by skylen:


Well, ClubJuggle disagreed with me back in 2004 on this.


That was 4 years ago. Ample time for mastery of the addition and subtraction required to figure out someone's local time based on their offset from GMT.


Hence needing to know someone's real time zone (residence) offset to UTC.


This does not follow. Your argument is not logical:
Originally posted by cpanaioti:

That depends on where your real time zone is. UTC is ahead of server time. If your real time is ahead of UTC then you could potentially take a photo prior to the announcement of the challenge for use in the challenge as you have intentionally turned your camera time back.


If I live in Japan (time zone UTC+9), the "problem" you pose is possible. However, it is clearly stated that the challenge starts at 00:00 US Eastern time (UTC-5 w/DST) -- which is 13:00 or 14:00 Japan time depending on whether DST is in use. There is no difference between me using UTC time someone living in Iceland.

Also, why should my geographic location matter? DPChallenge does not take local time into account for deadlines or challenge start times, so local time is completely insignificant -- in fact, you must convert from the "absolute" time of US Eastern into your local time to determine when the challenge begins and ends in your local time zone.
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