Hi Nagi,
there are 2 different conditions for Sunday you would need to click on the last entry on the line before while on the other days you need to click on the day before.
To start with the last one you could capture the left orange side to the square around today’s date and more the hotspot to the left so that it would click in the day before.
on Sunday you would need to capture the right side of that square and move the hotspot into the last day of the line above.
You could validate if it is Sunday looking at the text that is below your calendar as the day of the week is displayed.