Date
A plain calendar date holder used by DatePicker.
Values are stored as simple integers so no date/time library is required. Out-of-range values passed to DatePicker are coerced (e.g. day 31 in a 30-day month is clamped to 30).
Parameters
year
The calendar year (e.g. 2026).
month
The month of the year, 1-based (1 = January .. 12 = December).
day
The day of the month, 1-based.