What minimum days are
Many evaluations set a minimum number of trading days: even if you reach the profit target sooner, you pass only once you’ve traded that many days. On funded accounts, the days that count before a payout are usually winning days, days that close with at least a set profit, counted again after each payout.
A trading day runs from one session close to the next, not from midnight to midnight, and each firm sets what makes a day count. The details are on each firm’s rules page.