Windows XP and daylight savings time issue...

[patrick.a.connor]

Noticed something interesting today...if you right click
on the clock, select Adjust Date/Time, look at Date Time
Properties, click the time zone tab and uncheck the
Automatically adjust clock for daylight savings changes,
then click apply...you will see the time change back one
hour. What's interesting is if you go into Windows
Explorer and select some files...any Word doc will do...as
soon as you select the file, the time changes on the file
as well...this should not happen...has anyone else
experienced this? We're running Windows XPSP1 on the
desktops in an Active Directory environment.

 

[mrtee]

Time is relative. Just ask Einstein.

Yes, that is what happens, what difference does it make? The file system is echoing your current time (-7:00 from GMT).

--
Just my 2¢ worth
Jeff
__________in response to__________

| Noticed something interesting today...if you right click
| on the clock, select Adjust Date/Time, look at Date Time
| Properties, click the time zone tab and uncheck the
| Automatically adjust clock for daylight savings changes,
| then click apply...you will see the time change back one
| hour. What's interesting is if you go into Windows
| Explorer and select some files...any Word doc will do...as
| soon as you select the file, the time changes on the file
| as well...this should not happen...has anyone else
| experienced this? We're running Windows XPSP1 on the
| desktops in an Active Directory environment.

 

[David E. Jones]

It makes a huge difference when trying to synchronize files on removable
media or on computers with an operating system (e.g., Windows 98) where
the file date stamp is unaffected by the system time setting (except of
course for creation or modification). This happens with every daylight
savings time shift. Terrible nuisance, and no obvious benefit.

David Jones

 

[Rob Schneider]

My recollection is that Win 98 accomodates DST. Are you absolutely sure
the sync process doesn't indeed work? (e.g. recognising DST).

DO you have the location set correctly on all machines.?

Hope this is useful to you. Let us know.

rms

 

[David E. Jones]

Windows 98 does automatically adjust the clock for DST, but to my
recollection, it does not muck around with preexisting file date stamps.
I recall after the change last weekend seeing a huge number of files
that needed to be synchonized between a Win 98 SE and a Win XP computer,
and abandoned the process for that time. Will check again when I have
access to the computers and will report, unless someone else reports sooner.

David

 

[David E. Jones]

Following up my earlier message, here's what I found by comparing systems:

Files on the XP Home computer have a file date moved ahead by 1 hour
compared with the same files on the Win 98 computer.

The XP computer's system clock is set to Eastern Standard Time. The Time
Zone tab has Automatically adjust clock to Daylight Savings Time
unchecked, and the Internet Time tab has Automatically synchronize with
an Internet time server checked. I'm guessing these are the default
settings, since I don't recall making a change.

I did a comparison of files that SHOULD be duplicates on the two
computers. The file is an old one, from 1999. I viewed the file on each
local computer and also its location on the other computer over the
network. The files on the XP computer are one hour later than on the 98
computer. XP advance the file stamp by one hour when DST advanced one hour.

The file viewed on the Win XP computer:
File on Win XP: 7:43am
File on Win 98: 6:43am (over network)

The file viewed on the Win 98 computer:
File on Win XP: 8:43am (over network)
File on Win 98: 7:43am

I tried changing the clock on the XP computer manually to an hour
earlier, but this did not change the file date/time stamp to an hour
earlier.

I'm guessing it's too late to do anything about synchronizing the
computers other than to copy the newer files to the other.

In the future, is there any way to avoid this twice-a-year problem?
Should I change the XP computers system clock to neither automatically
adjust clock to DST or to automatically synchronize with an Internet
time server?

Thanks.

David

 

[fefabfee]

While I laud ms for putting GMT stamps on files, it is not
helpful to display a Dec ember file stamp as the time it
would have been if December had been on daylight savings
time. Aside from the overly complex synchornization
difficulties generated by this, some of us use time stamps
as an informal documentation of meeting a deadline.
Daylight savings time is totally irrelevant to a file
created on standard time. For me to manually figure out
the correct time with respect to daylight savings (i.e.
what time really was it on that April file) is a pain in
the ***. Win98 protocol was much more functional.