What is the wait at Centre Hospitalier de St. Mary right now?

At 12:45 a.m., the estimated wait for a non-priority case is about 462 minutes and stretcher occupancy is 146%. The estimate applies to people arriving in the waiting room: priority cases are seen first, everyone else waits longer.

What is the best time to go to Centre Hospitalier de St. Mary?

Based on our hourly history, the calmest hours at Centre Hospitalier de St. Mary are 8 p.m., 10 p.m., 7 p.m. (Québec time). An emergency room is open around the clock: in a life-threatening emergency, go now or call 911.

What if it is not urgent?

Call 811 for Info-Santé (option 1) to speak with a nurse, Info-Social (option 2), or the primary care access point (GAP, option 3) if you have no family doctor. Your pharmacist can also handle many common problems. In a life-threatening emergency, call 911.

Centre Hospitalier de St. Mary Emergency Room

Montréal · Montréal

Also known as: St. Mary's Hospital, Saint Mary's Hospital, Hôpital St. Mary, St. Mary.

Directions

Critical146%Stretcher occupancy

Waiting

In the ER

7h 42

Estimated wait

Stretcher > 24 h

Nobody on a stretcher for more than 48 hours.

24 h

Current situation

At 12:45 a.m., Centre Hospitalier de St. Mary reports a stretcher occupancy rate of 146% (critical). 13 people are waiting to see a doctor, out of 48 in the emergency room.

History since September 13, 2026 · 171,960 readings.

Best hours to arrive

The calmest hours are 8 p.m., 10 p.m., 7 p.m. (Québec time). The busiest is 10 a.m.. Based on 1330 readings.

12 a.m.132% · 14 waiting on average · 54 readings

Average stretcher occupancy for each hour of the day, Québec time. The calmest hours are green and named in the sentence above the chart.

Average occupancy by hour of the day at Centre Hospitalier de St. Mary
Hour	Average occupancy	Waiting (avg.)	Readings
12 a.m.	132%	14	54
1 a.m.	134%	13	53
2 a.m.	134%	12	54
3 a.m.	136%	11	54
4 a.m.	139%	11	56
5 a.m.	141%	9	54
6 a.m.	141%	8	55
7 a.m.	141%	9	55
8 a.m.	141%	11	55
9 a.m.	142%	12	55
10 a.m.	143%	12	57
11 a.m.	142%	13	56
12 p.m.	140%	16	56
1 p.m.	138%	17	56
2 p.m.	135%	16	56
3 p.m.	131%	17	56
4 p.m.	131%	19	56
5 p.m.	128%	18	56
6 p.m.	128%	17	56
7 p.m.	127%	16	56
8 p.m.	126%	16	56
9 p.m.	127%	15	56
10 p.m.	126%	15	56
11 p.m.	133%	15	56

By day and hour

Tap the grid to read a cell.

0–60 %
60–85 %
85–100 %
100–120 %
120–150 %
150 %+
No data

Average stretcher occupancy for every hour of every weekday, Québec time. The darker the cell, the busier the emergency room; dotted cells have no reading yet.

Average occupancy by day and hour at Centre Hospitalier de St. Mary
Day	Hour	Average occupancy	Readings
Mon	12 a.m.	125%	8
Mon	1 a.m.	127%	8
Mon	2 a.m.	131%	8
Mon	3 a.m.	135%	8
Mon	4 a.m.	136%	8
Mon	5 a.m.	137%	8
Mon	6 a.m.	135%	8
Mon	7 a.m.	135%	8
Mon	8 a.m.	136%	8
Mon	9 a.m.	139%	8
Mon	10 a.m.	136%	8
Mon	11 a.m.	138%	8
Mon	12 p.m.	137%	8
Mon	1 p.m.	134%	8
Mon	2 p.m.	135%	8
Mon	3 p.m.	132%	8
Mon	4 p.m.	131%	8
Mon	5 p.m.	123%	8
Mon	6 p.m.	131%	8
Mon	7 p.m.	132%	8
Mon	8 p.m.	130%	8
Mon	9 p.m.	128%	8
Mon	10 p.m.	128%	8
Mon	11 p.m.	140%	8
Tue	12 a.m.	140%	8
Tue	1 a.m.	141%	8
Tue	2 a.m.	140%	8
Tue	3 a.m.	144%	8
Tue	4 a.m.	148%	8
Tue	5 a.m.	148%	8
Tue	6 a.m.	148%	8
Tue	7 a.m.	150%	8
Tue	8 a.m.	147%	8
Tue	9 a.m.	147%	8
Tue	10 a.m.	145%	8
Tue	11 a.m.	141%	8
Tue	12 p.m.	144%	8
Tue	1 p.m.	138%	8
Tue	2 p.m.	139%	8
Tue	3 p.m.	143%	8
Tue	4 p.m.	139%	8
Tue	5 p.m.	142%	8
Tue	6 p.m.	138%	8
Tue	7 p.m.	133%	8
Tue	8 p.m.	134%	8
Tue	9 p.m.	132%	8
Tue	10 p.m.	128%	8
Tue	11 p.m.	136%	8
Wed	12 a.m.	136%	6
Wed	1 a.m.	136%	6
Wed	2 a.m.	136%	6
Wed	3 a.m.	138%	6
Wed	4 a.m.	142%	8
Wed	5 a.m.	145%	6
Wed	6 a.m.	146%	7
Wed	7 a.m.	148%	7
Wed	8 a.m.	147%	7
Wed	9 a.m.	149%	7
Wed	10 a.m.	144%	9
Wed	11 a.m.	149%	8
Wed	12 p.m.	145%	8
Wed	1 p.m.	141%	8
Wed	2 p.m.	139%	8
Wed	3 p.m.	125%	8
Wed	4 p.m.	131%	8
Wed	5 p.m.	126%	8
Wed	6 p.m.	127%	8
Wed	7 p.m.	129%	8
Wed	8 p.m.	122%	8
Wed	9 p.m.	127%	8
Wed	10 p.m.	128%	8
Wed	11 p.m.	133%	8
Thu	12 a.m.	134%	8
Thu	1 a.m.	135%	8
Thu	2 a.m.	133%	8
Thu	3 a.m.	135%	8
Thu	4 a.m.	139%	8
Thu	5 a.m.	138%	8
Thu	6 a.m.	133%	8
Thu	7 a.m.	132%	8
Thu	8 a.m.	135%	8
Thu	9 a.m.	136%	8
Thu	10 a.m.	141%	8
Thu	11 a.m.	141%	8
Thu	12 p.m.	145%	8
Thu	1 p.m.	138%	8
Thu	2 p.m.	134%	8
Thu	3 p.m.	127%	8
Thu	4 p.m.	130%	8
Thu	5 p.m.	126%	8
Thu	6 p.m.	124%	8
Thu	7 p.m.	126%	8
Thu	8 p.m.	126%	8
Thu	9 p.m.	127%	8
Thu	10 p.m.	123%	8
Thu	11 p.m.	131%	8
Fri	12 a.m.	132%	8
Fri	1 a.m.	139%	7
Fri	2 a.m.	141%	8
Fri	3 a.m.	142%	8
Fri	4 a.m.	143%	8
Fri	5 a.m.	146%	8
Fri	6 a.m.	147%	8
Fri	7 a.m.	148%	8
Fri	8 a.m.	144%	8
Fri	9 a.m.	146%	8
Fri	10 a.m.	146%	8
Fri	11 a.m.	146%	8
Fri	12 p.m.	141%	8
Fri	1 p.m.	140%	8
Fri	2 p.m.	135%	8
Fri	3 p.m.	132%	8
Fri	4 p.m.	135%	8
Fri	5 p.m.	133%	8
Fri	6 p.m.	130%	8
Fri	7 p.m.	125%	8
Fri	8 p.m.	129%	8
Fri	9 p.m.	128%	8
Fri	10 p.m.	128%	8
Fri	11 p.m.	133%	8
Sat	12 a.m.	131%	8
Sat	1 a.m.	131%	8
Sat	2 a.m.	129%	8
Sat	3 a.m.	128%	8
Sat	4 a.m.	131%	8
Sat	5 a.m.	135%	8
Sat	6 a.m.	137%	8
Sat	7 a.m.	136%	8
Sat	8 a.m.	138%	8
Sat	9 a.m.	137%	8
Sat	10 a.m.	140%	8
Sat	11 a.m.	136%	8
Sat	12 p.m.	133%	8
Sat	1 p.m.	135%	8
Sat	2 p.m.	133%	8
Sat	3 p.m.	128%	8
Sat	4 p.m.	125%	8
Sat	5 p.m.	122%	8
Sat	6 p.m.	117%	8
Sat	7 p.m.	114%	8
Sat	8 p.m.	115%	8
Sat	9 p.m.	117%	8
Sat	10 p.m.	122%	8
Sat	11 p.m.	128%	8
Sun	12 a.m.	124%	8
Sun	1 a.m.	128%	8
Sun	2 a.m.	132%	8
Sun	3 a.m.	130%	8
Sun	4 a.m.	134%	8
Sun	5 a.m.	141%	8
Sun	6 a.m.	140%	8
Sun	7 a.m.	142%	8
Sun	8 a.m.	143%	8
Sun	9 a.m.	142%	8
Sun	10 a.m.	146%	8
Sun	11 a.m.	144%	8
Sun	12 p.m.	138%	8
Sun	1 p.m.	141%	8
Sun	2 p.m.	131%	8
Sun	3 p.m.	130%	8
Sun	4 p.m.	128%	8
Sun	5 p.m.	128%	8
Sun	6 p.m.	127%	8
Sun	7 p.m.	128%	8
Sun	8 p.m.	126%	8
Sun	9 p.m.	130%	8
Sun	10 p.m.	126%	8
Sun	11 p.m.	127%	8

Last 7 days

Fri, Nov 13, 12:00 a.m.146% · 51 people present · 16 waiting

Over the last 7 days, occupancy averaged 130%, between 91% and 177%. That is −6% compared with the previous period.

Stretcher occupancy at Centre Hospitalier de St. Mary
Time	Occupancy	Present	Waiting
Fri, Nov 6, 02:00 a.m.	109%	37	7
Fri, Nov 6, 03:00 a.m.	118%	38	6
Fri, Nov 6, 04:00 a.m.	118%	39	7
Fri, Nov 6, 05:00 a.m.	118%	41	7
Fri, Nov 6, 06:00 a.m.	132%	45	9
Fri, Nov 6, 07:00 a.m.	141%	46	10
Fri, Nov 6, 08:00 a.m.	132%	49	13
Fri, Nov 6, 09:00 a.m.	136%	52	14
Fri, Nov 6, 10:00 a.m.	127%	47	11
Fri, Nov 6, 11:00 a.m.	136%	52	14
Fri, Nov 6, 12:00 p.m.	132%	55	14
Fri, Nov 6, 01:00 p.m.	155%	61	15
Fri, Nov 6, 02:00 p.m.	146%	58	14
Fri, Nov 6, 03:00 p.m.	146%	61	19
Fri, Nov 6, 04:00 p.m.	155%	62	19
Fri, Nov 6, 05:00 p.m.	150%	66	26
Fri, Nov 6, 06:00 p.m.	141%	62	27
Fri, Nov 6, 07:00 p.m.	141%	67	26
Fri, Nov 6, 08:00 p.m.	141%	72	28
Fri, Nov 6, 09:00 p.m.	132%	66	31
Fri, Nov 6, 10:00 p.m.	114%	65	27
Fri, Nov 6, 11:00 p.m.	132%	68	27
Sat, Nov 7, 12:00 a.m.	127%	62	27
Sat, Nov 7, 01:00 a.m.	123%	54	25
Sat, Nov 7, 02:00 a.m.	123%	52	23
Sat, Nov 7, 03:00 a.m.	123%	49	20
Sat, Nov 7, 04:00 a.m.	118%	51	20
Sat, Nov 7, 05:00 a.m.	132%	55	23
Sat, Nov 7, 06:00 a.m.	132%	55	22
Sat, Nov 7, 07:00 a.m.	127%	56	22
Sat, Nov 7, 08:00 a.m.	127%	57	25
Sat, Nov 7, 09:00 a.m.	123%	57	19
Sat, Nov 7, 10:00 a.m.	132%	60	21
Sat, Nov 7, 11:00 a.m.	150%	65	23
Sat, Nov 7, 12:00 p.m.	146%	65	28
Sat, Nov 7, 01:00 p.m.	136%	63	28
Sat, Nov 7, 02:00 p.m.	127%	66	30
Sat, Nov 7, 03:00 p.m.	114%	65	24
Sat, Nov 7, 04:00 p.m.	114%	59	22
Sat, Nov 7, 05:00 p.m.	118%	55	17
Sat, Nov 7, 06:00 p.m.	109%	51	16
Sat, Nov 7, 07:00 p.m.	91%	43	16
Sat, Nov 7, 08:00 p.m.	91%	36	13
Sat, Nov 7, 09:00 p.m.	100%	39	16
Sat, Nov 7, 10:00 p.m.	114%	41	15
Sat, Nov 7, 11:00 p.m.	118%	40	14
Sun, Nov 8, 12:00 a.m.	118%	39	14
Sun, Nov 8, 01:00 a.m.	105%	40	14
Sun, Nov 8, 02:00 a.m.	96%	35	13
Sun, Nov 8, 03:00 a.m.	100%	36	12
Sun, Nov 8, 04:00 a.m.	105%	40	12
Sun, Nov 8, 05:00 a.m.	127%	39	9
Sun, Nov 8, 06:00 a.m.	118%	41	8
Sun, Nov 8, 07:00 a.m.	123%	41	11
Sun, Nov 8, 08:00 a.m.	123%	43	13
Sun, Nov 8, 09:00 a.m.	123%	41	10
Sun, Nov 8, 10:00 a.m.	123%	48	12
Sun, Nov 8, 11:00 a.m.	114%	53	16
Sun, Nov 8, 12:00 p.m.	132%	57	18
Sun, Nov 8, 01:00 p.m.	136%	60	17
Sun, Nov 8, 02:00 p.m.	114%	55	14
Sun, Nov 8, 03:00 p.m.	114%	56	17
Sun, Nov 8, 04:00 p.m.	105%	53	17
Sun, Nov 8, 05:00 p.m.	141%	56	14
Sun, Nov 8, 06:00 p.m.	127%	55	13
Sun, Nov 8, 07:00 p.m.	118%	47	12
Sun, Nov 8, 08:00 p.m.	105%	45	13
Sun, Nov 8, 09:00 p.m.	136%	47	11
Sun, Nov 8, 10:00 p.m.	123%	47	12
Sun, Nov 8, 11:00 p.m.	136%	50	15
Mon, Nov 9, 12:00 a.m.	132%	47	17
Mon, Nov 9, 01:00 a.m.	136%	47	15
Mon, Nov 9, 02:00 a.m.	132%	45	11
Mon, Nov 9, 03:00 a.m.	132%	48	11
Mon, Nov 9, 04:00 a.m.	136%	47	13
Mon, Nov 9, 05:00 a.m.	146%	49	14
Mon, Nov 9, 06:00 a.m.	146%	46	11
Mon, Nov 9, 07:00 a.m.	150%	50	13
Mon, Nov 9, 08:00 a.m.	146%	54	18
Mon, Nov 9, 09:00 a.m.	141%	58	19
Mon, Nov 9, 10:00 a.m.	146%	62	21
Mon, Nov 9, 11:00 a.m.	136%	63	22
Mon, Nov 9, 12:00 p.m.	164%	71	27
Mon, Nov 9, 01:00 p.m.	177%	73	29
Mon, Nov 9, 02:00 p.m.	164%	76	28
Mon, Nov 9, 03:00 p.m.	164%	78	28
Mon, Nov 9, 04:00 p.m.	141%	72	31
Mon, Nov 9, 05:00 p.m.	136%	70	27
Mon, Nov 9, 06:00 p.m.	146%	70	27
Mon, Nov 9, 07:00 p.m.	155%	71	28
Mon, Nov 9, 08:00 p.m.	150%	68	26
Mon, Nov 9, 09:00 p.m.	141%	67	20
Mon, Nov 9, 10:00 p.m.	150%	64	21
Mon, Nov 9, 11:00 p.m.	164%	62	18
Tue, Nov 10, 12:00 a.m.	164%	59	20
Tue, Nov 10, 01:00 a.m.	168%	56	18
Tue, Nov 10, 02:00 a.m.	146%	50	15
Tue, Nov 10, 03:00 a.m.	141%	50	14
Tue, Nov 10, 04:00 a.m.	155%	50	15
Tue, Nov 10, 05:00 a.m.	159%	51	12
Tue, Nov 10, 06:00 a.m.	155%	51	11
Tue, Nov 10, 07:00 a.m.	155%	46	6
Tue, Nov 10, 08:00 a.m.	155%	52	12
Tue, Nov 10, 09:00 a.m.	159%	56	13
Tue, Nov 10, 10:00 a.m.	164%	62	19
Tue, Nov 10, 11:00 a.m.	164%	66	23
Tue, Nov 10, 12:00 p.m.	136%	63	23
Tue, Nov 10, 01:00 p.m.	127%	68	25
Tue, Nov 10, 02:00 p.m.	132%	70	26
Tue, Nov 10, 03:00 p.m.	146%	66	21
Tue, Nov 10, 04:00 p.m.	146%	57	18
Tue, Nov 10, 05:00 p.m.	123%	51	14
Tue, Nov 10, 06:00 p.m.	123%	48	12
Tue, Nov 10, 07:00 p.m.	114%	48	12
Tue, Nov 10, 08:00 p.m.	109%	48	12
Tue, Nov 10, 09:00 p.m.	114%	45	12
Tue, Nov 10, 10:00 p.m.	114%	44	12
Tue, Nov 10, 11:00 p.m.	114%	42	14
Wed, Nov 11, 12:00 a.m.	114%	41	13
Wed, Nov 11, 01:00 a.m.	114%	41	12
Wed, Nov 11, 02:00 a.m.	114%	42	11
Wed, Nov 11, 03:00 a.m.	123%	43	12
Wed, Nov 11, 04:00 a.m.	136%	43	9
Wed, Nov 11, 05:00 a.m.	136%	40	6
Wed, Nov 11, 06:00 a.m.	136%	40	6
Wed, Nov 11, 07:00 a.m.	141%	44	7
Wed, Nov 11, 08:00 a.m.	136%	46	12
Wed, Nov 11, 09:00 a.m.	155%	50	14
Wed, Nov 11, 10:00 a.m.	150%	53	14
Wed, Nov 11, 11:00 a.m.	146%	57	16
Wed, Nov 11, 12:00 p.m.	141%	58	18
Wed, Nov 11, 01:00 p.m.	141%	67	25
Wed, Nov 11, 02:00 p.m.	150%	69	23
Wed, Nov 11, 03:00 p.m.	109%	68	19
Wed, Nov 11, 04:00 p.m.	136%	66	19
Wed, Nov 11, 05:00 p.m.	105%	61	17
Wed, Nov 11, 06:00 p.m.	96%	63	13
Wed, Nov 11, 07:00 p.m.	118%	59	12
Wed, Nov 11, 08:00 p.m.	118%	61	11
Wed, Nov 11, 09:00 p.m.	118%	51	6
Wed, Nov 11, 10:00 p.m.	114%	53	8
Wed, Nov 11, 11:00 p.m.	100%	51	12
Thu, Nov 12, 12:00 a.m.	127%	47	14
Thu, Nov 12, 01:00 a.m.	118%	43	13
Thu, Nov 12, 02:00 a.m.	114%	39	12
Thu, Nov 12, 03:00 a.m.	127%	40	11
Thu, Nov 12, 04:00 a.m.	127%	40	9
Thu, Nov 12, 05:00 a.m.	127%	41	10
Thu, Nov 12, 06:00 a.m.	123%	40	10
Thu, Nov 12, 07:00 a.m.	118%	39	9
Thu, Nov 12, 08:00 a.m.	118%	42	11
Thu, Nov 12, 09:00 a.m.	118%	48	17
Thu, Nov 12, 10:00 a.m.	123%	50	16
Thu, Nov 12, 11:00 a.m.	118%	52	15
Thu, Nov 12, 12:00 p.m.	123%	58	17
Thu, Nov 12, 01:00 p.m.	123%	61	20
Thu, Nov 12, 02:00 p.m.	123%	63	21
Thu, Nov 12, 03:00 p.m.	114%	64	23
Thu, Nov 12, 04:00 p.m.	109%	66	27
Thu, Nov 12, 05:00 p.m.	100%	60	25
Thu, Nov 12, 06:00 p.m.	118%	58	23
Thu, Nov 12, 07:00 p.m.	123%	56	24
Thu, Nov 12, 08:00 p.m.	127%	53	17
Thu, Nov 12, 09:00 p.m.	132%	50	15
Thu, Nov 12, 10:00 p.m.	127%	47	16
Thu, Nov 12, 11:00 p.m.	141%	48	13
Fri, Nov 13, 12:00 a.m.	146%	51	16

Compared with the region

Montréal

This emergency room146%
Regional average (Montréal)142%
Québec average113%

Centre Hospitalier de St. Mary is 4 points above its region's average. The Québec average is 113%.

Centre Hospitalier de St. Mary, its region and Québec
Comparison	Occupancy
This emergency room	146%
Regional average (Montréal)	142%
Québec average	113%

History and seasons

The MSSS publishes these figures by fiscal period of about four weeks, one period at a time.

In period 5 of 2026-2027: 14,053 visits and an average length of stay of 10.0 h. The same period in 2025-2026 counted 13,990 visits (0%).

2026-2027 · P719,461 visits

2021-2022
2022-2023
2023-2024
2024-2025
2025-2026
2026-2027

In period 5 of 2026-2027: 14,053 visits and an average length of stay of 10.0 h. The same period in 2025-2026 counted 13,990 visits (0%).

Fiscal periods at Centre Hospitalier de St. Mary
Fiscal year	Period	Visits
2022-2023	P5	13,197
2023-2024	P5	12,304
2024-2025	P5	14,424
2025-2026	P5	13,990
2026-2027	P5	14,053
2021-2022	P7	18,146
2022-2023	P7	18,630
2023-2024	P7	17,784
2024-2025	P7	20,023
2025-2026	P7	19,348
2026-2027	P7	19,461

Frequently asked questions

What is the wait at Centre Hospitalier de St. Mary right now?: At 12:45 a.m., the estimated wait for a non-priority case is about 462 minutes and stretcher occupancy is 146%. The estimate applies to people arriving in the waiting room: priority cases are seen first, everyone else waits longer.
What is the best time to go to Centre Hospitalier de St. Mary?: Based on our hourly history, the calmest hours at Centre Hospitalier de St. Mary are 8 p.m., 10 p.m., 7 p.m. (Québec time). An emergency room is open around the clock: in a life-threatening emergency, go now or call 911.
What if it is not urgent?: Call 811 for Info-Santé (option 1) to speak with a nurse, Info-Social (option 2), or the primary care access point (GAP, option 3) if you have no family doctor. Your pharmacist can also handle many common problems. In a life-threatening emergency, call 911.

Sources: ministère de la Santé et des Services sociaux (hourly emergency-room reading) and Québec.ca for the estimated wait. These figures describe how busy an ER is, not the quality of care, and are not medical advice. In a life-threatening emergency, call 911.