How can I change the start of the week in the Baserow Application Builder’s date picker so that the calendar begins on Sunday instead of Monday?
Hey @hslee, I’m not sure if that’s already possible, so let’s ask @frederikdc to confirm. 
That’s indeed not possible yet.
Can we please make this possible?
Its quite common to see a calendar popup and assume it starts on Sunday, not Monday. So the Baserow behavior tend to require a double-take when compared to most other date-pickers many of us interact with everywhere else.
Hello @dkonigs, we already have the issue for this request: Calendar/Date Picker: Option to start weeks on Sundays · Issue #1221 · baserow/baserow · GitHub 