Calendarweek 53/26 missing? KNIME 5.2.4

Hello fellow KNIMErs

2026 is one of those special cases that has 53 weeks, with week 53 going from 28.12. until 03.01.2027 at least here in Switzerland.

KNIME outputs the following years with 53 weeks:

2028 is a leap year but doesn’t have 53 weeks, the next “official” year with 53 weeks is 2032 followed by 2037.

We have a similar issue with our capacity planning tool so I’m suspecting there is some underlying issue with the regional settings that the calendar is based on.

Does anyone know if there’s a setting in KNIME to override that? As far as I can tell the region on the remote machine we’re using is set to Germany but as far as I know that should have the same week standard as we do.

Edit: some further googling suggest that it’s based on the US Broadcast Calendar.

Thanks in advance