From: Mike N. 

On Sun, 18 Mar 2007 00:42:03 -0400, "Geo."  wrote:

>I must not be understanding you, if I schedule an event for 8am every day,
>should it not be 8am every day including the day after we change the time?
>This is how it's always worked in the past, time change happens but events
>still occur at 8am local time. This time when the time changed happened I
>found my event was scheduled for 9am.

   Ok, so 8am is 13:00 UTC.   Now, let's say there have been no DST patches
applied, so it stores the appointment time as 13:00UTC.   Now you apply the
OS DST patch and voila! 13:00UTC becomes 9am in the app.

   The patch on patch comes because correction requires that you have to
know localtime at the time the appointment was created, and when the DST
patch was applied.     Then there's the issue of a DST patch being applied
but not taking effect until you change time zones, apply, change time zones
again, reboot, etc.    So an appointment time fixer might still get things
wrong because it detects a patch applied on XX date but it didn't really
take effect on that date.

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