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Microsoft Daylight Saving Time & Time Zone Blog
This is the blog maintained by staff at Microsoft to provide general information, announcements and provide answers to Frequently Asked Questions (FAQs) related to daylight saving time (DST) and time zone (TZ) changes around the world. * Important Notice
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Blog Post:
HOTFIX: Paraguay Shortens 2012-13 DST
Win DST
The government of Paraguay has Shortened Daylight Saving Time for 2012-13 [ Official Decree ]. DST for Paraguay now ends on March 23, 2013. A hotfix for Windows has been released to address this change. You can find details of the hotfix and download it here [ KB2829069 ]. Hotfixes are available for...
on
20 Mar 2013
Blog Post:
HOTFIX: Chile Extends 2013 DST
Win DST
The government of Chile has extended Daylight Saving Time for 2013 [ Official Decree ]. DST for mainland Chile now ends on April 27, 2013 and starts on September 7, 2013. A hotfix for Windows has been released to address this change. You can find details of the hotfix and download it here [ KB2821346...
on
6 Mar 2013
Blog Post:
December 2012 DST Cumulative Update for Windows operating systems
Win DST
The December 2012 DST Cumulative update for Windows operating systems has been published on Microsoft Download Center. It contains the following changes: Bahia Standard Time: Starting in 2012, Bahia Standard Time will no longer have DST. Azores Standard Time: Changes reflect the end of...
on
27 Nov 2012
Blog Post:
October 2012 DST Cumulative Update for Windows operating systems
Win DST
The October 2012 DST Cumulative update for Windows operating systems has been published on Microsoft Download Center. This year’s October Update replaces the normal August Cumulative Update. It contains the following changes: E. Europe Standard Time: The display name for this time zone...
on
11 Oct 2012
Blog Post:
Armenia cancels DST
Win DST
Disclaimer : The information in this document is written in response to an announcement by the government of Armenia about changes in the daylight saving time in Armenia for the year of 2012. The steps provided in this bulletin were created to mitigate the impacts that the daylight saving time...
on
22 Mar 2012
Blog Post:
Hotfix available for Chile DST change
Win DST
The government of Chile has extended Daylight Saving Time for 2012 [ Official Decree ]. DST for mainland Chile now ends on April 28, 2012 and starts on September 1, 2012. A hotfix for Windows has been released to address this change. You can find details of the hotfix and download it here [ KB2681116...
on
7 Mar 2012
Blog Post:
December 2011 DST Cumulative Update for Windows operating systems
Win DST
The December 2011 DST Cumulative update for Windows operating systems has been published on Microsoft Download Center. It contains the following changes: Kaliningrad Standard Time: As previously announced in KB2625508 , Belarus has decided to discontinue daylight saving time from 2011 and stay...
on
23 Nov 2011
Blog Post:
Notice: Pakistan decides not to observe daylight saving time (DST) in the year 2010
atsim1
As reported on the Associated Press of Pakistan the government of Pakistan has decided that Pakistan will not observe DST in the year 2010. The existing setting for the Pakistan time zone in Microsoft Windows already reflects no DST for 2010. The display name for the Pakistan time zone is: “(UTC+05:00...
on
30 Mar 2010
Blog Post:
Advisory: Russia decides to make time zone changes in several regions
atsim1
The Ministry of Industry and Trade of Russia plans to make time zone changes in several regions so they won’t return to summer time this sping. The draft resolutions are posted at: http://www.minprom.gov.ru/docs/ce/42 http://www.minprom.gov.ru/docs/ce/41 http://www.minprom.gov.ru/docs/ce/38...
on
25 Mar 2010
Blog Post:
Advisory: Syria decides to start daylight saving time on April 2nd, 2010
atsim1
The "Syrian News Station" reported that the Council of Ministers has decided that Syria will postpone DST start to April 2nd, 2010 (midnight between Thursday and Friday). Microsoft Windows provides a way to prevent machines from switching into DST by un-checking the “Automatically adjust the clock for...
on
25 Mar 2010
Blog Post:
Bangladesh decides to cancel Daylight Saving Time originally scheduled to start on April 1st, 2010
atsim1
The Bangladesh cabinet cancelled its earlier decision to reintroduce daylight saving time from April 1st, 2010, considering its repercussion on people. Customers in Bangladesh can switch their computers to the “Central Asia Standard Time” time zone with the display name of “(UTC+06:00) Astana” which...
on
25 Mar 2010
Blog Post:
A hotfix is available to update the Daylight Saving Time for Paraguay, Fiji and Chile time zones - KB 981128
atsim1
A Windows hotfix has been released to support the following DST changes: · Set DST start date for Paraguay at first Saturday of October at 23:59:59.999 and DST end date at second Saturday of April at 23:59:59.999 · Set DST start date for Fiji at fourth Sunday of October 2010 at 02:00:00.000...
on
10 Mar 2010
Blog Post:
Notice: Microsoft Windows Daylight Saving Time and Time Zone update now available (February 2010)
atsim1
The most recent cumulative update to daylight saving time (DST) and world time zones (TZ) is now available for supported versions of the Windows Operating System via Microsoft Download Center and Windows Update. For more information about this cumulative DST and TZ update, visit the following Microsoft...
on
23 Feb 2010
Blog Post:
Advisory: Bangladesh decides to end daylight saving time on December 31, 2009
atsim1
On Monday, December 28, 2009 the Bangladesh government announced that, following a cabinet decision last week, the clocks would move back one hour to standard time at 11:59 PM on Dec 31. The decision was also reported on The Daily Star . A notice from the power ministry on Sunday, however, clarified...
on
28 Dec 2009
Blog Post:
Microsoft Windows Daylight Saving Time and Time Zone update now available (December 2009)
atsim1
The most recent cumulative update to daylight saving time (DST) and world time zones (TZ) is now available for supported versions of the Windows Operating System via Microsoft Download Center and Windows Update. Microsoft product teams follow a semi-annual DST and TZ update schedule, which follows...
on
24 Nov 2009
Blog Post:
Advisory: Mauritius Discontinues Daylight Saving Time in 2009
atsim1
There will be no daylight saving time (DST) in Mauritius in 2009 despite positive reports from a recent DST trial, which began in October 2008 and ended in March 2009. Mauritius’ government announced that it would not repeat last year’s DST trial. Microsoft Windows provides a way to prevent machines...
on
24 Nov 2009
Blog Post:
Notice: Hotfix Available for Morocco 2009 Daylight Saving Time
atsim1
Morocco has announced the start of DST for 2009 on June 1st at midnight. The clock will move one hour forward at midnight between May 31st and June 1st, and then move one hour back at midnight between August 20th and August 21st in 2009. There was no DST for Morocco in 2009 prior to this update. ...
on
27 May 2009
Blog Post:
Notice: Now also available for Windows XP and Windows Server 2003: Optional Hotfix Available for Pakistan 2009 Daylight Saving Time
atsim1
As reported in various publications, including Daily Times , Pakistan has announced the start of DST for 2009 on April 15 th at midnight. This information is subject to change as it has not been officially confirmed by a Pakistani government source. Last Monday a hotfix was released to implement...
on
17 Apr 2009
Blog Post:
Notice: Optional Hotfix Available for Pakistan 2009 Daylight Saving Time
atsim1
As reported in various publications, including Daily Times , Pakistan has announced the start of DST for 2009 on April 15 th at midnight. This information is subject to change as it has not been officially confirmed by a Pakistani government source. Microsoft has produced a hotfix to implement...
on
13 Apr 2009
Blog Post:
Microsoft Daylight Saving Time and Time Zone update now available (December 2008)
atsim1
The most recent cumulative updates to daylight saving time (DST) and world time zones (TZ) are now available for supported versions of the following products. For the latest DST updates on each of these products, please visit the following Microsoft Web site: Microsoft Daylight Saving Time Support page...
on
29 Jan 2009
Blog Post:
Daylight Saving Time and Time Zone update for Windows now available (December 2008)
atsim1
The most recent cumulative updates to daylight saving time (DST) and world time zones (TZ) for Windows are now available for supported versions of the Windows operating system. The cumulative updates have been released to the Microsoft Download Center and Windows Update.. These updates support versions...
on
5 Jan 2009
Blog Post:
Daylight Saving Time and Time Zone update for Windows now available (August 2008)
atsim1
The most recent cumulative updates to daylight saving time (DST) and world time zones (TZ) for Windows are now available for supported versions of the Windows operating system. The cumulative updates have been released to the Microsoft Download Center. These updates support versions of Windows XP, Windows...
on
16 Aug 2008
Blog Post:
Chile announces an extension on their Daylight Saving Time for 2008
atsim1
The government of Chile announced on February 7, 2008, that their current daylight saving time will be extended in order to save energy. The new fall back date for the daylight saving period of 2007-2008 is: Daylight saving time ends: Last Saturday of March at 11:59:59PM Information is available...
on
8 Mar 2008
Blog Post:
Windows Hotfix Update now available for new Daylight Saving Time changes in Brazil
atsim1
To be posted to the Microsoft Daylight Saving Time & Time Zone Hot Topics page at http://support.microsoft.com/gp/dst_hottopics ... Brazil 2007-2008 Daylight Saving changes: The government of Brazil announced a change on September 20, 2007, in the observance of daylight saving time in the country...
on
8 Oct 2007
Blog Post:
Venezuela Time Zone Update Hotfix for the Windows OS is Available
atsim1
The government of Venezuela has announced a change to the time zone for the country. To date, Venezuela observed AST. The new time zone change will begin September 24, 2007, when clocks will move backwards 30 minutes, from UTC-4:00 GMT to UTC-4:30. This change begins at 11:59:59 PM local time on September...
on
24 Sep 2007
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