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Modifying Daylight Saving Time Settings

LabWindows/CVI

Modifying Daylight Saving Time Settings

If you want to change the DST rules string, you can add an entry to the configuration options for LabWindows/CVI in the registry. Set the entry name to DSTRules and set the entry value to the modified DST rules string.

You can set configuration options for the LabWindows/CVI development environment and set configuration options for the LabWindows/CVI Runtime.

LabWindows/CVI ignores a modified DST rules string for executables or DLLs you build when you select Instrument driver only for Run-time support in the Target Settings dialog box. The instrument driver support run-time library does not contain code to read the LabWindows/CVI configuration options.

Suppressing Daylight Saving Time

You can suppress daylight saving time by modifying the DST rules string as follows:

":(1900)010102+0:010102-0"

Starting Year in Daylight Saving Time

If you start the year in daylight saving time, use the following descriptor as the first descriptor in the rule:

"010100-0"

For example, the following rule specifies that the year starts in daylight saving time:

":(2006)010100-0:040100+0:110100-0"