Sign in with Microsoft
Sign in or create an account.
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.


The government of Paraguay has shortened DST for 2013 to end on March 23, 2013 instead of April 6, 2013 as per the new DST rules [Official Decree]. This hotfix updates Windows DST support for the [(UTC -4:00) Asuncion] time zone so that DST ends on March 23, 2013 at 23:59:59.999 and the clock reverts to 23:00:00.000. This update also corrects historical timestamp data for Libya for all days before November 10, 2012.


A supported hotfix is now available from Microsoft. To obtain the hotfix, click the link at the top of this page or contact Microsoft Customer Support Services. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft website:

In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Note This update is available only as a hotfix.

More Information

Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Was this information helpful?

What affected your experience?
By pressing submit, your feedback will be used to improve Microsoft products and services. Your IT admin will be able to collect this data. Privacy Statement.

Thank you for your feedback!