How long are penalties in 14U games?

Penalties are actual playing time, scaled to the period length you're playing:

• Minors are pro-rated by rule. At 14U and older, Affiliates may grant exceptions to the pro-rated minor schedule.
• Majors, misconducts and match penalties are 5:00 / 10:00 / 5:00 by rule. Affiliates or governing bodies may reduce them on the scale above.

Key penalty rules:

• A power-play goal ends the first non-coincidental minor being served by the short-handed team. It doesn't apply to goals on a penalty shot or awarded goals, and majors aren't ended.
• Coincidental minors or majors (equal numbers to both teams) allow immediate substitution, and those players stay in the box until the first stoppage after their time expires.
• A bench minor is served by any non-penalized player who was on the ice at the time of the infraction, designated by the coach through the captain.
• Minor plus misconduct to one player: you must put an extra player in the box to serve the minor.
• Major plus game misconduct, or a match penalty: a substitute must serve the time in the box (unless coincidental).