Question $2$

$1$ pts

The maximum value of date in the station$\_$day$\_1116.$dta is equal to $20819.$ What calendar date does this correspond to $($the dates below are formatted year$-$month$-$day$)?$

$2020-08-19$

$2019-08-02$

$2016-12-31$

$2011-01-01$