I would like to request again that Calendly adds an option for users to choose whether the calendar week starts on Monday or Sunday.
As a UK user, I find it frustrating that in 2026 the backend calendar still shows the US-style Sunday-start week, even though the client-facing booking view appears to start on Monday. That inconsistency makes managing bookings and availability more confusing than it should be. I have changed the wrong availability more than once because I naturally read the calendar as starting on Monday, only to realise afterwards that I had marked myself unavailable on the wrong date.
I actually raised this feature request myself a year or two ago, so it is disappointing that nothing seems to have happened since. I also know other users have asked for the same thing, so this is clearly not a new or isolated request. Calendly is otherwise an excellent service, which is exactly why this issue stands out so much. A setting like this feels like a basic localisation feature for users in the UK, Europe, and many other places where Monday is the standard start of the week. I do not think that, in 2026, it is too much to ask for users to have a simple option to choose whether their week starts on Monday or Sunday.
I hope the team might finally consider introducing this toggle so users can choose the calendar format that works for them. It is honestly my main complaint about Calendly, and I would really appreciate it if this feature could finally be added.
