Calendar Start of Week day

Well, after reading your post, I suggest you check if your calendar app has an option to adjust the start of the week. In some apps, you can customize this setting to align with your preference. It's usually in the app's settings or preferences menu. If you can't find it there, you might want to consider exploring alternative calendar apps that allow for this customization.
If you ever want to supercharge your calendar skills, I stumbled upon a handy guide at https://calendargeek.com/guide that could have some tips and tricks to improve your calendar experience.