Problem with calendar implementation

Hi guys,
I wanna implement a basic calendar view in appgyver (new)
This was my reference video:

Like you can see, the row seems to contain 8 days at once instead of 7.
This is the formula i used:
MAP(GENERATE_RANGE(1, DATETIME_DIFFERENCE(ADD_DURATION(pageVars.current_date, 1, “months”), pageVars.current_date, “days”)),{id: item})

Any help is much appreciated