Yes, each phase has a minimum number of trading days you must complete before passing. A trading day counts as any day where at least one trade is opened.
1-Step Challenge — Evaluation: 2 trading days.
2-Step Challenge — Phase 1: 2 trading days.
2-Step Challenge — Phase 2: 3 trading days.
Funded (simulated live) account: Refer to the applicable Payout Rules in your dashboard.