C# Detect manual time change and daylight savings time events in windows events log

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Hi,

I would like to detect during my C# application run-time a manual change of the system time and date and automatic daylight savings time change.
Moreover I am looking for a way to detect these changes that happened during the time the application was offline when the user launched the application.
In this page http://support.microsoft.com/kb/815314 there is an explanation how to scan the events log but I couldn't find something that will identify an event uniquely as time change event.

Thanks in advance for your help,
Oren

Posted 26-May-11 3:46am

orenbt78

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Kim Togo · Answer 1 · 2011-05-26T04:36:00

Solution 1

There is a SystemEvents.TimeChanged[^] event that is triggered when the user changes the time on the system clock.

When the program is not running, you can store the value in DateTime.Now.IsDaylightSavingTime and use this to compare at next startup.

Posted 26-May-11 4:36am

Kim Togo

Updated 26-May-11 4:47am

v2

Comments

Sergey Alexandrovich Kryukov 26-May-11 21:28pm

Good, my 5.
--SA

Kim Togo 27-May-11 10:13am

Thanks SA