Week Number Implementation

  • Article

The following are the three different types of systems for calculating the week numbers that are displayed on the monthly calendar control:

  • ISO system. The first week of the year is the first week that contains Thursday.
  • USA system. The first week of the year is the week containing Jan 1.
  • Other. The first week of the year is the first complete week.

To select a system, enter the following registry setting.

[HKEY_LOCAL_MACHINE\Software\ Microsoft\Calendar\WeekNumbers]
Values (DWORD):
"ISO"=dword:0
"USA"=dword:100
"Other"=dword:101

If you do not specify a registry setting, the ISO system is used.

See Also

Configuration File Localization

 Last updated on Friday, October 08, 2004

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