How Long Is Hockey Intermission? Where the Clock Starts and Where It Stops

An NHL intermission is 18 minutes. A regulation game runs three 20-minute periods, so there are two of them. The length changes by league: NCAA college games use 12 or 15 minutes, IIHF competitions such as the Olympics, the World Championship and the World Juniors use 15, and the Ontario Hockey League uses 17. In the NHL, NCAA and OHL books the clock starts once the last on-ice official leaves the surface, a few seconds after the horn; the IIHF starts it at the end of the period. Play resumes at 0:00. Overtime breaks run on separate rules and are usually shorter.

Name the league before you trust the number

The 18-minute answer is correct and it travels badly. It comes from one document. In the NHL's Official Rules 2025-2026, Rule 34.2 tells the game timekeeper that "intermissions are eightteen minutes (18:00) in length, unless otherwise notified" — the misspelling is the league's own, sitting in the current PDF — and Rule 77.2 requires play to resume "upon the expiration of eighteen (18) minutes or a length of time designated by the League." Nothing in that book governs a college game, an Olympic game or a Saturday night in Kitchener.

| League | Regulation intermission | Where the rule lives | Break before overtime | |---|---|---|---| | NHL | 18 minutes | Official Rules 2025-2026, Rules 34.2 and 77.2 | About 2 minutes in the regular season; 15 minutes in the playoffs | | OHL (major junior) | 17 minutes | 2025-2026 Official Rules, Rules 34.2 and 77.1.1 | 1-minute rest period in the regular season; 15 minutes in the playoffs | | NCAA men's and women's | 12 or 15 minutes | 2024-25 and 2025-26 Rules Book, Rules 82.1 and 36.4 | 2 minutes in the regular season; a full resurfacing in the postseason | | IIHF (Olympics, Worlds, World Juniors) | 15 minutes | Official Rule Book, Rules 34.2 and 77.2 | 3 minutes before a short overtime; 15 minutes in a gold medal game |

Through the 2021-22 season I answered this question with one number and a shrug, because the NHL figure is the one everybody repeats back to you. Then in June 2022 the NCAA Ice Hockey Rules Committee removed the 18-minute option from the college book, leaving 12 or 15, and I found myself correcting advice I had already handed out. Now I ask which league first and answer second. It is the same reflex I need at an eligibility desk, where two lines on a transcript can carry the same label and count differently, and the label is never where you check.

Where the intermission clock starts, and where it stops

Three of those four books measure from the same instant, and it is later than you think. NHL Rule 77.2 states that "timing of the intermission commences once the last official exits the ice surface upon the termination of the period." NCAA Rule 82.1 gives its timekeeper the identical instruction. The OHL's Rule 77.1.1 repeats the sentence with a 17 where the NHL has an 18. The IIHF is the exception: its Rule 34.2 starts the clock "immediately at the conclusion of the period." So an NHL break is 18 minutes plus however long it takes the officials to leave, and Rule 31.10 keeps them out there until every player has gone to the dressing room. An IIHF break is 15 minutes flat.

The stop is stricter than the start. The NCAA prints the countdown in Rule 82.3: at 4:00 the home team warns both rooms, at 2:00 the officials take the ice, at 1:00 the home team follows, at 0:50 the visitors, and at 0:00 the period starts. The IIHF runs the same script with buzzers at three minutes and two minutes and a referee calling teams to center ice at fifteen seconds. The NHL backs its version with a penalty, since Rule 86.2 assesses a bench minor to a team that is not on the ice or visibly heading there when the intermission clock expires.

For planning purposes, subtract about two minutes from whatever the posted figure is. The college and international books have teams stepping onto the ice at the 2:00 and 1:00 marks, and the NHL requires them out there by 0:00 on pain of a penalty, so an 18-minute intermission buys you roughly sixteen quiet minutes.

The rulebook number and the television window are two different measurements

Both NHL rules that set 18 minutes leave the league room to move it. Rule 34.2 says "unless otherwise notified." Rule 77.2 says "eighteen (18) minutes or a length of time designated by the League." Rule 31.10 confirms it from the other direction by telling referees to report any undue delay in resuming play "after the League approved intermission length," a phrase that only makes sense if the approved length can change.

What a broadcast does around that interval is a separate product with its own rules. Commercial breaks during play fall under Rule 87.1, which says television commercial time-out guidelines are established by the league and bars a commercial break after a goal or after an icing call. Those are in-period stoppages, negotiated into the flow of live hockey. The broadcast does reach the clock in one specific place, Rule 34.6, which requires the game timekeeper to synchronize his timing device with the television producer of the originating broadcast. That keeps the arena countdown and the feed telling the same story. The length of the countdown still comes from Rule 77.2, and the studio segment you watch is built to fill it.

The strongest argument against all of this is practical, and I grant most of it. If you only ever watch NHL games on television, one number is plenty, and what actually returns you to live hockey is the broadcast rather than Rule 77.2. Plan strictly by the rulebook and you will occasionally sit through ninety seconds of analysis you did not need. My answer is that the single number fails precisely where it costs the most: at overtime, at college games, and during the fortnight every four years when the best players in the world are playing under a different book.

What those minutes are actually for

Ice resurfacing anchors the break without filling it. The Zamboni company puts each resurfacing at roughly 12 minutes of operating time, during which the machine can remove close to 2,500 pounds of compacted snow and leave about 1,500 pounds of water behind. Rinks that run two machines cut that sharply. Frank Butler, lead operations assistant at Yale's Ingalls Rink, told the university in November 2024 that "it takes one machine about eight minutes to resurface Ingalls; six minutes with our two vehicles."

Subtract six to twelve minutes of ice work from an 18-minute NHL intermission and a good deal of time is left, with a list of jobs inside it. NHL Rule 1.10 describes crews clearing snow during every commercial time-out, work it explicitly separates from "the normal ice resurfacing that is performed during the intermissions between each period of play." Rule 36.3 has real-time scoring crews generating reports during the first and second intermissions and distributing them to media and to both coaching staffs. NCAA Rule 82.1 holds officials on duty for the whole break. Teams change ends, and both benches are working against a return protocol that begins several minutes before the faceoff.

College hockey: 12 or 15 minutes, and no 18-minute option

The NCAA Men's and Women's Ice Hockey Rules Book covering 2024-25 and 2025-26 sets the figure twice. Rule 82.1 allows three 20-minute periods "with an intermission of 12 or 15 minutes between each period." Rule 36.4 repeats the range as an instruction to the timekeeper, along with a three-minute preliminary warning. The 18-minute option survived until the rules committee dropped it for 2022-23, and the committee's published rules-changes document gives its reasoning: the Big Ten had experimented successfully with 12-minute intermissions, 15 minutes had become the national standard, and "the 18-minute intermission has been removed from rule book as an option."

Which of the two you get is a conference decision. The book recommends that conferences adopt a uniform format, and the example it prints is a 15-minute intermission for all conference games. It also attaches consequences: a team that fails to adhere to the intermission protocol can be assessed a delay-of-game penalty. Rink staff feel that deadline more sharply than anyone in the stands. Butler called the 15-minute limit "slightly nerve-wracking during a game," and added that "if we aren't done within that time, the team can get penalized."

Olympic, World Championship and World Junior games: 15 minutes

Everything the IIHF sanctions runs on one interval. Rule 34.2 of the IIHF Official Rule Book reads: "Intermissions are 15 minutes in length, unless otherwise defined." Rule 77.2 hands the federation the same designation power the NHL reserves for itself. The IIHF Sport Regulations turn the rule into a scoreboard script, with 15 minutes appearing automatically when the period ends, a buzzer reaching the dressing rooms at three minutes, teams entering the ice at two, and the referee calling them to center ice at fifteen seconds.

That covers the Olympic tournament, the men's and women's World Championships, the World Juniors and the rest of the IIHF calendar. Milano Cortina 2026 was played under the IIHF book, on NHL-sized ice, with blended IIHF and NHL officiating crews, and NBC Olympics told viewers the same thing the rulebook says: "Between each period, there is a 15-minute intermission during which the ice is resurfaced." Anyone who watched those games in February and then watched an NHL game in March saw breaks three minutes apart, timed from different starting instants.

Here is what I cannot vouch for personally. I read the OHL's 2025-26 book for the 17-minute figure above; I did not read the WHL's or the QMJHL's, and I have never operated a game clock or a resurfacer. Event bulletins can also define something else under that "unless otherwise defined" clause, and I have not read every bulletin for every tournament. What I can vouch for is the rule text quoted here and the edition each line came from.

Overtime is a different break, and once it is barely a break at all

NHL regular season play settles the question in a note attached to Rule 84.1: "No intermission time shall be put on the clock between the end of regulation and the start of overtime, but the expectation is that the overtime period should commence approximately two (2) minutes after the end of regulation." Arena crews shovel the full sheet using the same procedure as a television time-out. Players stay at their benches and are not permitted to return to the dressing room. The clock resets to 5:00, teams change ends, and 3-on-3 begins.

I learned that rule by getting it wrong in front of someone. Working through a scheduling problem with a family, I told them a tied game meant a normal intermission and they had time for a phone call. The three-on-three was finished before the call was. That cost them five minutes of the most watchable hockey of the season and cost me an afternoon of rechecking every timing figure I had ever quoted, which is roughly when I started downloading rulebooks instead of trusting summaries.

The playoffs invert the pattern. Rule 84.5 sends tied teams to a 15-minute intermission after the third period and then to full 20-minute sudden-death periods, changing ends at the start of each one, and Rule 34.3 specifies that playoff overtime intermissions are completed in the normal manner, resurfacing included. In a Stanley Cup Final game that reaches overtime, the break before the extra period is 15 minutes, three shorter than the two breaks earlier that same night.

Other books split the same way. The NCAA regular season gives two minutes before a five-minute 3-on-3 under Rule 91.1, while its postseason resurfaces the ice after regulation and then plays 20-minute periods with a one-minute ice maintenance stoppage at the first whistle under the 10-minute mark, per Rule 91.4. An IIHF preliminary game takes three minutes and a shovel. An IIHF gold medal game takes 15 minutes, a full resurfacing and a trip to the dressing room. The OHL puts a one-minute rest period on the clock and starts overtime.

Working out tonight's break in under a minute

1. Identify the league. NHL is 18 minutes, the OHL 17, the NCAA 12 or 15, anything under the IIHF banner 15.
2. Start counting when the officials skate off, not when the horn sounds. They stay until the players have left, and every book except the IIHF's starts its clock there.
3. Subtract two minutes for the return protocol. Skaters are back on the ice before the intermission clock reaches zero.
4. Use the arena scoreboard or the on-screen intermission clock as the authority. That countdown is the one the timekeeper is running.
5. If the score is tied after three periods, throw the number away and use the overtime rule for that competition instead.

Questions people ask about hockey intermissions

How long is intermission in college hockey?

NCAA men's and women's games use intermissions of 12 or 15 minutes, set by Rules 82.1 and 36.4 of the rules book covering the 2024-25 and 2025-26 seasons. The 18-minute option was removed in June 2022. Conferences are encouraged to standardize, and 15 minutes is the common choice.

How many intermissions are there in a hockey game?

Two. A regulation game has three 20-minute periods, with a break after the first and after the second. Overtime adds another break, usually shorter than a regulation intermission, and playoff formats that use full 20-minute overtime periods add a 15-minute break before each one.

How long is intermission in Olympic hockey?

Olympic intermissions are 15 minutes, the standard set in Rule 34.2 of the IIHF Official Rule Book and used at Milano Cortina 2026. The ice is resurfaced during that window. In medal games, overtime periods are also preceded by a 15-minute break with a full resurfacing.

How long is intermission in the Stanley Cup Final?

Eighteen minutes, the same as the regular season, because NHL Rule 34.2 sets one length for all games unless the league notifies otherwise. The difference appears in overtime: Rule 84.5 gives tied playoff teams a 15-minute intermission before each sudden-death period.

Why are hockey intermissions so long?

Resurfacing is the anchor. One machine needs roughly eight minutes on a full sheet, and the Zamboni company puts a resurfacing at about 12 minutes of operating time. The remaining minutes cover player recovery, officials' duties, statistics reporting, in-arena programming and the protocol that returns both teams to the ice.

Is there an intermission before overtime in the NHL?

Not in the regular season. Rule 84.1 puts no intermission time on the clock and expects overtime to begin about two minutes after regulation, with crews shoveling the ice while players wait at the bench. In the playoffs, Rule 84.5 provides a full 15-minute intermission instead.