FOR IMMEDIATE RELEASE
Beginning in 2007, daylight saving time (DST) has been extended in the United States. DST started on March 11, 2007, which was three weeks earlier than usual, and will end on November 4, 2007, which is one week later than usual This results in a new DST period that is four weeks longer than in previous years.
CHANGE IN DAYLIGHT SAVING TIME HAS PEOPLE WONDERING ONCE AGAIN
Y2K + 7?
The concern among many is that software including Windows and applications that rely on time will be left set at the wrong time. All the attendant wrong time issues that were first discussed with regards to the change in millennia could surface again when the time changes in March.
As far as updating Windows with the new DST rules, Microsoft® has hot fixes available for the more recent operating systems (XP, 2003 and Vista).
To obtain these fixes see the Microsoft Knowledge Base (KB) article 928388, 2007 time zone update for Microsoft Windows operating systems
Earlier versions of Windows can be manually updated using the tzedit.exe utility or other techniques documented in Microsoft Knowledge Base article 914387
February 2007 cumulative
time zone update for Microsoft Windows operating systems in KB 931836
Issues with calendaring in Microsoft Exchange are discussed in the Lotus notes section below.
ClockWatch is Beagle Software's Clock Synchronization product for Windows. Since it synchronizes clocks from standard time to local time, it must know if the local clock is currently using DST.
ClockWatch uses the DST and time zone value set in Windows. Whatever time zone and DST setting that is set in the Windows Control panel is used in ClockWatch for time and DST.
So as long as Windows is aware of the DST change, our ClockWatch products will be OK. To check whether your Windows version is correct, see the discussion above.
Both Lotus Notes and Lotus Domino® are affected by the change in DST
How Calendar Entries are Affected:
Note: The DST change will not affect only Lotus Notes and
Domino®. It is a calendaring issue which will affect many operating systems and
applications, including Microsoft® Exchange and any other time-zone-aware
The StartTime field and EndTime fields are used to portray the
start and end time settings in an
open document but not in the view(s). The StartTime and EndTime fields are
designed to retain only a time portion, and as such they are not affected by the
changes to the DST rules. This is working as designed.
The effect of DST change on Java is significant. Time zone
information is obtained from a set of files stored internally by the Java
Virtual Machine (JVM) and applied to dates as required. Since this information
is statically stored in the Java Runtime Environment, older versions of Java do
not know about the changes and will display the wrong time for the USA
throughout most of March 2007. Forward date information will already be wrong if
it refers to dates in that period.