Description

In December 2025, the last week of the year displays incorrectly as WK1 instead of WK53. This is due to ISO 8601 week numbering where December 29-31, 2025 belong to the next year’s Week 1.

When viewing December weeks in the week planner, goals with due dates in late December should display with their actual year-end week number 53 rather than wrapping to Week 1 of the following year.

Affected Areas

• Week planner display for December
• NumOfLastWeek() function in week index pages
• WeekNum() function in the weekly data fetching library