Daylight Savings Time problem

songest · #1 03-11-2013, 05:45 PM

Boss, Moderators

Noticed that old posts are now dated 1 hr later than what it was a day ago.
Had something gone wrong at the server end because of DST ?

sammyboyfor · #2 03-11-2013, 05:49 PM

Quote:

Originally Posted by songest

Boss, Moderators

Noticed that old posts are now dated 1 hr later than what it was a day ago.
Had something gone wrong at the server end because of DST ?

The same question has been asked twice a year for the last 12 years.

No there is nothing wrong with the server. It's because 1 am occurs at different times in different time zones.

http://sammyboyforum.com/showthr...gs#post6976597

songest · #3 03-11-2013, 06:06 PM

Quote:

Originally Posted by sammyboyfor

The same question has been asked twice a year for the last 12 years.

No there is nothing wrong with the server. It's because 1 am occurs at different times in different time zones.

http://sammyboyforum.com/showthr... s#post6976597

Boss,
Different time zones... that I understand.

However, am confused on how vBulletin displays the time after DST.

Allow me to elaborate...
All posts got advanced by 1hr, including times in User CP.
The 24hr timeclock between reputation point actions becomes confusing.
eg if u had last upz someone at 5:00pm yesterday, it now shows the previous upz time as 6pm. However, u don't have to wait till 6pm today to upz someone again (if u go by 6pm + 24hrs), u can still upz at 5pm.

sammyboyfor · #4 04-11-2013, 04:06 AM

Quote:

Originally Posted by songest

Boss,
Different time zones... that I understand.

However, am confused on how vBulletin displays the time after DST.

Allow me to elaborate...
All posts got advanced by 1hr, including times in User CP.
The 24hr timeclock between reputation point actions becomes confusing.
eg if u had last upz someone at 5:00pm yesterday, it now shows the previous upz time as 6pm. However, u don't have to wait till 6pm today to upz someone again (if u go by 6pm + 24hrs), u can still upz at 5pm.

The time is out of sync only for a few hours until all the automatic DST scripts on the various servers catch up with each other.

songest · #5 09-03-2014, 11:30 AM

The one hr forward DST kicked in as reported at 2:29am reported below:

http://sammyboyforum.com/showpos...ostcount=26193

It is now 9 hrs later at 11:30am Sing time and the forum is still showing 12:30pm. Auto scripts haven't kick in yet and is it possible to reduce the delay?

ah rat · #6 09-03-2014, 12:32 PM

Quote:

Originally Posted by songest

The one hr forward DST kicked in as reported at 2:29am reported below:

http://sammyboyforum.com/showpos...ostcount=26193

It is now 9 hrs later at 11:30am Sing time and the forum is still showing 12:30pm. Auto scripts haven't kick in yet and is it possible to reduce the delay?

Bro,Seem like 1 hr different

Should 12:32pm when post

Big Sexy · #7 09-03-2014, 01:18 PM

isnt it..sunday usa time? it is still saturday there.
anyway, dont worry.. the script will correct itself..

Quote:

Originally Posted by songest

The one hr forward DST kicked in as reported at 2:29am reported below:

http://sammyboyforum.com/showpos...ostcount=26193

It is now 9 hrs later at 11:30am Sing time and the forum is still showing 12:30pm. Auto scripts haven't kick in yet and is it possible to reduce the delay?

songest · #8 09-03-2014, 01:47 PM

Quote:

Originally Posted by Big Sexy

isnt it..sunday usa time? it is still saturday there.
anyway, dont worry.. the script will correct itself..

Dst shld occur on Sun 2am Newyork time.
There is a problem somewhere... perhaps with a server kicking in the dst correction early?

I am providing feedback so that whatever that caused it (maybe the scripts) can be fixed.

sammyboyfor · #9 09-03-2014, 02:56 PM

Quote:

Originally Posted by songest

Dst shld occur on Sun 2am Newyork time.
There is a problem somewhere... perhaps with a server kicking in the dst correction early?

I am providing feedback so that whatever that caused it (maybe the scripts) can be fixed.

There is nothing wrong with the scripts. It will sort itself out as the various DST scripts sync.

songest · #10 09-03-2014, 03:07 PM

Quote:

Originally Posted by sammyboyfor

There is nothing wrong with the scripts. It will sort itself out as the various DST scripts sync.

How to explain this:

Someone posted at 2:29am Sunday singapore time (see my first post today) but the forum already displayed it as 3:29am. If this is not DST already kicking in (bringing it forward 1hr), then what is it?

If it is indeed DST kicking in, it is way too early for DST to be kicking in even for PST time where the servers are located.
The scripts logic may not have a problem but the time it is invoked may be early.

Or maybe it is a lazy hazy Sunday and my mind wasn't working well

sammyboyfor · #11 09-03-2014, 03:52 PM

Quote:

Originally Posted by songest

How to explain this:

Someone posted at 2:29am Sunday singapore time (see my first post today) but the forum already displayed it as 3:29am. If this is not DST already kicking in (bringing it forward 1hr), then what is it?

If it is indeed DST kicking in, it is way too early for DST to be kicking in even for PST time where the servers are located.
The scripts logic may not have a problem but the time it is invoked may be early.

Or maybe it is a lazy hazy Sunday and my mind wasn't working well

Because there is double compensation based on what you select in http://sammyboyforum.com/profile.php?do=editoptions

songest · #12 09-03-2014, 04:03 PM

Quote:

Originally Posted by sammyboyfor

Because there is double compensation based on what you select in http://sammyboyforum.com/profile.php?do=editoptions

My personal setting had always been "DST corrections always off" yet I do see the DST "1hr forward" in posts by users as well as the forum time that is at the centre bottom of the page.

Maybe you can help advise what's the correct setting and since most users are based in GMT+8, make that setting as the default.

I hope I am not being seen as intruding. Just like to provide the feedback and data points to surface the root cause.

sammyboyfor · #13 09-03-2014, 04:12 PM

Quote:

Originally Posted by songest

My personal setting had always been "DST corrections always off" yet I do see the DST "1hr forward" in posts by users as well as the forum time that is at the centre bottom of the page.

Maybe you can help advise what's the correct setting and since most users are based in GMT+8, make that setting as the default.

I hope I am not being seen as intruding. Just like to provide the feedback and data points to surface the root cause.

Whatever setting you're using you don't have to change anything. It will come right after all the various time zones have are past the daylight saving transition date.

sammyboyfor · #14 10-03-2014, 04:22 AM

Quote:

Originally Posted by songest

Maybe you can help advise what's the correct setting and since most users are based in GMT+8, make that setting as the default.

As I stated earlier, all 24 time zones should have crossed the 9th Mar 2 am point in time by now and the everything should be back to normal.

songest · #15 10-03-2014, 03:39 PM

Quote:

Originally Posted by sammyboyfor

As I stated earlier, all 24 time zones should have crossed the 9th Mar 2 am point in time by now and the everything should be back to normal.

Yes. I know that after enough time had elapsed (in this case all 24 timezones past the switching time), the forum times will be back to normal.

I am still puzzled why DST kicks in early as in my first post.
Forumer first noticed that it kicked in on Sun 2:39am Sing time.
His post was done at that time but forum displays it as one hour ahead at 3:39am.

So is kickin time dependent on:

- First time zone DST +1hr forward kicks in, eg New Zealand is GMT+13.

- Kickin time is independent of where the PST servers is located, because if it is dependent, it is inconsistent with the forumer observation.

ps had tried to google for vbulletin DST bug but did not really find something useful.