Wrong week numbers

DigiCal based its week numbering system based on the country you've selected in the system's Language& Input screen.

if you have selected English (US), this will also set all the date and time settings to the US version; in Europe, you can select English (UK) instead if you don't want to use the US week number variants.

Here's a detailed help page explaining how the week numbering system works in DigiCal.
- https://digibites.zendesk.com/hc/en-us/articles/200299853-How-do-I-change-the-week-number-system-How-do-I-change-the-first-day-of-the-week-