WIndows 10 & 11 program

[Tim_Parnell]

This issue resurfaced since this thread and might apply to this app:

Weekofyear is wrong for germany

the weekofyear seems wrong for germany, can somebody agree? at least at this one printed which hang at office wall show 17. and my calendar at home too. Var d As New DateTime(2021,4,26,0,0,0,0) ' 26.04.2021 MessageBox "WeekOfYear = " + d.WeekOfYear.ToString + " (should be 17 not 18)" Xojo 2021r1.1 Germany see Middle East, the international ISO 8601 standard [IMG_20210519_193532_862] Web [IMG_20210519_193343_657] Wiki Die Kalenderwoche ist nach ISO 8601 so definiert: Kalenderwochen ha…