Hi @Jesper G, thanks for reaching out! The week start defaults to Monday on my end - would you mind sharing a screenshot or more information about what you are seeing? This will help me take a closer look. Thanks!
 

Hi Leianne

It’s the difference between that the Timeline shows perfectly the week start on Mondays, but in the Card details it’s showed as Sundays. Look at my screenshot below.

Regards, Jesper

Hi @Jesper G, thank you for sharing that information! It looks like you’re referring to the calendar/date picker for timeline and card details. Unfortunately, it’s not currently possible to change the week start for the calendar. 

However, we’re very interested in your feedback and committed to continually improving our products. I’ve gone ahead and moved your comments to this new community post. If you’re willing to share, we’d love to hear more details about your use case or what you’d like to see in this experience within this thread.

I’ve also converted this post to an idea so that it’s visible to others within the Product Feedback section of the community - from here, they can upvote it and add details of their own.

Finally, for more information on how Lucid manages feedback via this community, take a look at this post:

Thank you for sharing your feedback and please let us know if you have any questions!