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  1. #1
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    Default daylight savings patches

    What with my job I have been doing a lot of work on daylight savings patches, so have decided to make my notes free to anyone who needs.


    A quick guide to patching your OS for daylight savings.


    windows (http://www.microsoft.com/nz/msdn/timezone/itpro.mspx)

    for windows XP or vista there is a patch, this will be done by windows update and if you have automatic updates turned on then you wont have to do anything.
    some NZ users have seen a daylight savings update come down last week.

    this is all fine but what about if you dont run XP or vista.

    for win9X, windows ME or windows 2000 you can use a tool called TZEDIT from microsoft.

    or you can get a reg hack I made up:
    Mirror #1: http://mirror.erayd.net/pressf1/robs...zdt_update.zip
    Mirror #2: http://www.imagef1.net.nz/downloads/nzdt_update.zip
    Original host: www.theanswerguy.co.nz/nzdt_update.zip


    but what if you dont run windows at all......





    SUN solaris unix:
    patches are out for solaris 8,9,10
    for older version of solaris read the linux section.





    HPUX unix:
    there is an offical patch form HP but you can edit your own system easly.
    the file to edit is /usr/lib/tztab
    add a block like this:
    # New Zealand Standard Time, New Zealand Daylight Time
    #
    NZST-12NZDT
    0 3 25-31 10 1985-1988 0 NZDT-13
    0 3 8 10 1989 0-6 NZDT-13
    0 3 1-7 10 1990-2006 0 NZDT-13
    0 3 24-30 9 2007-2038 0 NZDT-13
    0 1 1-7 3 1985-1989 0 NZST-12
    0 1 15-21 3 1990-2007 0 NZST-12
    0 1 1-7 4 2008-2038 0 NZST-12



    linux and BSD:
    a number of linux distro's have a offical patch but you can often roll your own.....

    source files can be found on the internet at http://www.twinsun.com/tz/tz-link.htm

    you will need to find your timezone source files.
    try /usr/share/lib/zoneinfo/src/

    once you have found the location then update the australasia file and then run it through zic, and reboot system

    zic /usr/share/lib/zoneinfo/src/australasia
    reboot





    apple MAC-OS:
    I cant tell you much, I assume that apple have a patch, but apple have used a BSD base and so i expect the the linux instruction may work.
    more infomation as it come to hand.



    other things to think about


    JAVA:
    SUN have a timezone updater, look for the 2007f version.

    PERL:
    perl has timezone stuff and may need patching.

    OUTLOOK & OFFICE:
    there is also a patch from MS for newest versions of outlook and office.



    any appliaction that asks about timezone during install may need looking at.
    Last edited by robsonde; 05-09-2007 at 12:21 PM. Reason: Meh
    "Sometimes the only thing more dangerous than a question is an answer!"
    Grand Nagus - Zek

    http://brightwork.wordpress.com/

  2. #2
    PC World Staff Jan Birkeland's Avatar
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    Default Re: daylight savings patches

    great post, Stickied

  3. #3
    Elite
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    Default Re: daylight savings patches

    I believe an OS X update 10.4.11 will have the changes. Probably they forgot about 10.3. I have no idea what is happening with apps like Entourage etc.
    --
    Me pics

  4. #4
    Madre Dios!!! beeswax34's Avatar
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    Default Re: daylight savings patches

    Thank God for auto updates then
    All the technology and software in the universe is useless when the end user has the IQ of a sack of hammers.

  5. #5
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    Default Re: daylight savings patches

    What is the big deal with changing the time manually, it will have to be done on VCRs cellphones etc etc anyway.

  6. #6
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    Default Re: daylight savings patches

    my VCR still left in day light saving time..
    ..guess I should just leave it for a bit longer
    who said you have to always have the right time

  7. #7
    Madre Dios!!! beeswax34's Avatar
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    Default Re: daylight savings patches

    This forum certainly doesn't keep the right time so I guess you're right heni
    All the technology and software in the universe is useless when the end user has the IQ of a sack of hammers.

  8. #8
    Senior Member
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    Default Re: daylight savings patches

    Quote Originally Posted by Safari View Post
    What is the big deal with changing the time manually, it will have to be done on VCRs cellphones etc etc anyway.
    a good number of PC's are setup to time-sync from the internet and so change the time may not work, and you will have to change the time twice.
    one on sunday 31st and again a week later once your system changes it too :-)
    "Sometimes the only thing more dangerous than a question is an answer!"
    Grand Nagus - Zek

    http://brightwork.wordpress.com/

  9. #9
    Senior Member
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    Default Re: daylight savings patches

    Quote Originally Posted by Safari View Post
    What is the big deal with changing the time manually, it will have to be done on VCRs cellphones etc etc anyway.
    Some people don't realise daylight savings time has started (or ended) until they switch on their PCs.

  10. #10
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    Default Re: daylight savings patches

    I have just manualy updated my registry (Win 98se) for daylight saving by following the instructions at:

    http://www.microsoft.com/nz/msdn/timezone/manual.mspx

    Daylight start is shown as:
    00,00,09,00,00,00,05,00,02,00,00,00,00,00,00,00
    and it worked great (ie the clock jumped forward one hour)

    Standard start is shown as:
    00,00,04,00,00,00,01,00,03,00,00,00,00,00,00,00
    but this did not work (ie the clock did not fall back one hour)

    I had to modify it as follows to get it working properly.
    00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00

    Any one else experience this problem?

    zoob

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