Sunrise and Sunset Times in Ottawa Today (2026) – Day Length & Solar Data

Sunrise and sunset times in Ottawa vary throughout the year due to seasonal changes and daylight saving time. Located at a latitude of 45.4° N, Ottawa experiences long summer days around the June solstice and shorter daylight hours during winter. This page provides today's exact sunrise time, sunset time, and total day length for Ottawa, Canada, based on local time. You can also explore how daylight hours change by month and compare solar times with other cities worldwide. Accurate sunrise and sunset data are useful for travelers, photographers, and anyone planning outdoor activities.

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Today
Sunrise: 06:38
Sunset: 17:51
Daylight: 11h 12min
Longest day
15h 44min
on 2026-06-20
Shortest day
8h 46min
on 2026-12-18
Coordinates
45.42° N, 75.70° W
Time zone: America/Toronto

Sunrise & Sunset Throughout the Year in Ottawa

The following chart shows the sunrise and sunset times in Ottawa throughout the year. The sudden jumps visible on the chart are due to daylight saving time (DST) changes.

Monthly Sun Times for Ottawa

January
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 07:40 16:32 8h 51min 07:08 17:04
2 07:40 16:33 8h 52min 07:08 17:05
3 07:40 16:34 8h 53min 07:08 17:06
4 07:40 16:35 8h 54min 07:08 17:06
5 07:40 16:36 8h 55min 07:08 17:07
6 07:40 16:37 8h 56min 07:08 17:08
7 07:40 16:38 8h 58min 07:08 17:09
8 07:39 16:39 8h 59min 07:08 17:11
9 07:39 16:40 9h 0min 07:07 17:12
10 07:39 16:41 9h 2min 07:07 17:13
11 07:38 16:42 9h 3min 07:07 17:14
12 07:38 16:43 9h 5min 07:06 17:15
13 07:37 16:45 9h 7min 07:06 17:16
14 07:37 16:46 9h 9min 07:06 17:17
15 07:36 16:47 9h 10min 07:05 17:18
16 07:36 16:48 9h 12min 07:05 17:20
17 07:35 16:50 9h 14min 07:04 17:21
18 07:34 16:51 9h 16min 07:03 17:22
19 07:34 16:52 9h 18min 07:03 17:23
20 07:33 16:54 9h 20min 07:02 17:25
21 07:32 16:55 9h 22min 07:01 17:26
22 07:31 16:56 9h 25min 07:01 17:27
23 07:30 16:58 9h 27min 07:00 17:28
24 07:30 16:59 9h 29min 06:59 17:30
25 07:29 17:01 9h 32min 06:58 17:31
26 07:28 17:02 9h 34min 06:57 17:32
27 07:27 17:03 9h 36min 06:56 17:34
28 07:26 17:05 9h 39min 06:55 17:35
29 07:24 17:06 9h 41min 06:54 17:36
30 07:23 17:08 9h 44min 06:53 17:38
31 07:22 17:09 9h 46min 06:52 17:39

February
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 07:21 17:11 9h 49min 06:51 17:41
2 07:20 17:12 9h 52min 06:50 17:42
3 07:19 17:14 9h 54min 06:49 17:43
4 07:17 17:15 9h 57min 06:48 17:45
5 07:16 17:16 10h 0min 06:47 17:46
6 07:15 17:18 10h 3min 06:45 17:47
7 07:13 17:19 10h 5min 06:44 17:49
8 07:12 17:21 10h 8min 06:43 17:50
9 07:11 17:22 10h 11min 06:41 17:51
10 07:09 17:24 10h 14min 06:40 17:53
11 07:08 17:25 10h 17min 06:39 17:54
12 07:06 17:27 10h 20min 06:37 17:56
13 07:05 17:28 10h 23min 06:36 17:57
14 07:03 17:29 10h 26min 06:34 17:58
15 07:02 17:31 10h 29min 06:33 18:00
16 07:00 17:32 10h 32min 06:31 18:01
17 06:59 17:34 10h 35min 06:30 18:02
18 06:57 17:35 10h 38min 06:28 18:04
19 06:55 17:37 10h 41min 06:27 18:05
20 06:54 17:38 10h 44min 06:25 18:07
21 06:52 17:39 10h 47min 06:24 18:08
22 06:51 17:41 10h 50min 06:22 18:09
23 06:49 17:42 10h 53min 06:20 18:11
24 06:47 17:44 10h 56min 06:19 18:12
25 06:45 17:45 10h 59min 06:17 18:13
26 06:44 17:47 11h 2min 06:15 18:15
27 06:42 17:48 11h 5min 06:14 18:16
28 06:40 17:49 11h 9min 06:12 18:17

March
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 Today 06:38 17:51 11h 12min 06:10 18:19
2 06:37 17:52 11h 15min 06:09 18:20
3 06:35 17:53 11h 18min 06:07 18:21
4 06:33 17:55 11h 21min 06:05 18:23
5 06:31 17:56 11h 24min 06:03 18:24
6 06:29 17:57 11h 28min 06:01 18:25
7 06:28 17:59 11h 31min 06:00 18:27
8 07:26 19:00 11h 34min 06:58 19:28
9 07:24 19:02 11h 37min 06:56 19:29
10 07:22 19:03 11h 40min 06:54 19:31
11 07:20 19:04 11h 44min 06:52 19:32
12 07:18 19:06 11h 47min 06:50 19:33
13 07:16 19:07 11h 50min 06:49 19:35
14 07:15 19:08 11h 53min 06:47 19:36
15 07:13 19:10 11h 56min 06:45 19:37
16 07:11 19:11 12h 0min 06:43 19:39
17 07:09 19:12 12h 3min 06:41 19:40
18 07:07 19:13 12h 6min 06:39 19:41
19 07:05 19:15 12h 9min 06:37 19:43
20 07:03 19:16 12h 12min 06:35 19:44
21 07:01 19:17 12h 16min 06:33 19:45
22 06:59 19:19 12h 19min 06:31 19:47
23 06:58 19:20 12h 22min 06:29 19:48
24 06:56 19:21 12h 25min 06:28 19:49
25 06:54 19:23 12h 28min 06:26 19:51
26 06:52 19:24 12h 32min 06:24 19:52
27 06:50 19:25 12h 35min 06:22 19:53
28 06:48 19:27 12h 38min 06:20 19:55
29 06:46 19:28 12h 41min 06:18 19:56
30 06:44 19:29 12h 44min 06:16 19:57
31 06:42 19:30 12h 48min 06:14 19:59

April
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 06:40 19:32 12h 51min 06:12 20:00
2 06:39 19:33 12h 54min 06:10 20:01
3 06:37 19:34 12h 57min 06:08 20:03
4 06:35 19:36 13h 0min 06:06 20:04
5 06:33 19:37 13h 3min 06:04 20:05
6 06:31 19:38 13h 7min 06:02 20:07
7 06:29 19:39 13h 10min 06:00 20:08
8 06:27 19:41 13h 13min 05:59 20:10
9 06:26 19:42 13h 16min 05:57 20:11
10 06:24 19:43 13h 19min 05:55 20:12
11 06:22 19:45 13h 22min 05:53 20:14
12 06:20 19:46 13h 25min 05:51 20:15
13 06:18 19:47 13h 28min 05:49 20:16
14 06:17 19:48 13h 31min 05:47 20:18
15 06:15 19:50 13h 35min 05:45 20:19
16 06:13 19:51 13h 38min 05:44 20:21
17 06:11 19:52 13h 41min 05:42 20:22
18 06:10 19:54 13h 44min 05:40 20:23
19 06:08 19:55 13h 47min 05:38 20:25
20 06:06 19:56 13h 50min 05:36 20:26
21 06:04 19:58 13h 53min 05:34 20:27
22 06:03 19:59 13h 56min 05:33 20:29
23 06:01 20:00 13h 59min 05:31 20:30
24 05:59 20:01 14h 1min 05:29 20:32
25 05:58 20:03 14h 4min 05:27 20:33
26 05:56 20:04 14h 7min 05:26 20:34
27 05:55 20:05 14h 10min 05:24 20:36
28 05:53 20:06 14h 13min 05:22 20:37
29 05:51 20:08 14h 16min 05:21 20:39
30 05:50 20:09 14h 19min 05:19 20:40

May
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 05:48 20:10 14h 21min 05:17 20:41
2 05:47 20:12 14h 24min 05:16 20:43
3 05:45 20:13 14h 27min 05:14 20:44
4 05:44 20:14 14h 30min 05:13 20:46
5 05:43 20:15 14h 32min 05:11 20:47
6 05:41 20:17 14h 35min 05:09 20:48
7 05:40 20:18 14h 38min 05:08 20:50
8 05:38 20:19 14h 40min 05:06 20:51
9 05:37 20:20 14h 43min 05:05 20:52
10 05:36 20:22 14h 45min 05:04 20:54
11 05:35 20:23 14h 48min 05:02 20:55
12 05:33 20:24 14h 50min 05:01 20:56
13 05:32 20:25 14h 53min 04:59 20:58
14 05:31 20:26 14h 55min 04:58 20:59
15 05:30 20:28 14h 57min 04:57 21:00
16 05:29 20:29 15h 0min 04:56 21:02
17 05:28 20:30 15h 2min 04:54 21:03
18 05:27 20:31 15h 4min 04:53 21:04
19 05:25 20:32 15h 6min 04:52 21:06
20 05:24 20:33 15h 8min 04:51 21:07
21 05:24 20:34 15h 10min 04:50 21:08
22 05:23 20:35 15h 12min 04:49 21:09
23 05:22 20:36 15h 14min 04:48 21:10
24 05:21 20:37 15h 16min 04:47 21:12
25 05:20 20:39 15h 18min 04:46 21:13
26 05:19 20:40 15h 20min 04:45 21:14
27 05:18 20:40 15h 22min 04:44 21:15
28 05:18 20:41 15h 23min 04:43 21:16
29 05:17 20:42 15h 25min 04:42 21:17
30 05:16 20:43 15h 26min 04:42 21:18
31 05:16 20:44 15h 28min 04:41 21:19

June
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 05:15 20:45 15h 29min 04:40 21:20
2 05:15 20:46 15h 31min 04:40 21:21
3 05:14 20:47 15h 32min 04:39 21:22
4 05:14 20:48 15h 33min 04:38 21:23
5 05:13 20:48 15h 34min 04:38 21:24
6 05:13 20:49 15h 36min 04:38 21:25
7 05:13 20:50 15h 37min 04:37 21:25
8 05:12 20:50 15h 38min 04:37 21:26
9 05:12 20:51 15h 39min 04:36 21:27
10 05:12 20:52 15h 39min 04:36 21:27
11 05:12 20:52 15h 40min 04:36 21:28
12 05:12 20:53 15h 41min 04:36 21:29
13 05:11 20:53 15h 41min 04:36 21:29
14 05:11 20:54 15h 42min 04:35 21:30
15 05:11 20:54 15h 42min 04:35 21:30
16 05:11 20:55 15h 43min 04:35 21:31
17 05:11 20:55 15h 43min 04:35 21:31
18 05:12 20:55 15h 43min 04:36 21:31
19 05:12 20:56 15h 43min 04:36 21:32
20 05:12 20:56 15h 44min 04:36 21:32
21 05:12 20:56 15h 44min 04:36 21:32
22 05:12 20:56 15h 44min 04:36 21:32
23 05:13 20:57 15h 43min 04:37 21:33
24 05:13 20:57 15h 43min 04:37 21:33
25 05:13 20:57 15h 43min 04:37 21:33
26 05:14 20:57 15h 43min 04:38 21:33
27 05:14 20:57 15h 42min 04:38 21:33
28 05:15 20:57 15h 42min 04:39 21:33
29 05:15 20:57 15h 41min 04:39 21:32
30 05:16 20:56 15h 40min 04:40 21:32

July
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 05:16 20:56 15h 40min 04:40 21:32
2 05:17 20:56 15h 39min 04:41 21:32
3 05:17 20:56 15h 38min 04:42 21:31
4 05:18 20:55 15h 37min 04:43 21:31
5 05:19 20:55 15h 36min 04:43 21:31
6 05:19 20:55 15h 35min 04:44 21:30
7 05:20 20:54 15h 34min 04:45 21:30
8 05:21 20:54 15h 32min 04:46 21:29
9 05:22 20:53 15h 31min 04:47 21:29
10 05:23 20:53 15h 30min 04:48 21:28
11 05:23 20:52 15h 28min 04:48 21:27
12 05:24 20:52 15h 27min 04:49 21:27
13 05:25 20:51 15h 25min 04:50 21:26
14 05:26 20:50 15h 24min 04:51 21:25
15 05:27 20:50 15h 22min 04:53 21:24
16 05:28 20:49 15h 20min 04:54 21:23
17 05:29 20:48 15h 19min 04:55 21:22
18 05:30 20:47 15h 17min 04:56 21:21
19 05:31 20:46 15h 15min 04:57 21:20
20 05:32 20:45 15h 13min 04:58 21:19
21 05:33 20:45 15h 11min 04:59 21:18
22 05:34 20:44 15h 9min 05:00 21:17
23 05:35 20:43 15h 7min 05:02 21:16
24 05:36 20:41 15h 5min 05:03 21:15
25 05:37 20:40 15h 3min 05:04 21:14
26 05:38 20:39 15h 0min 05:05 21:12
27 05:39 20:38 14h 58min 05:06 21:11
28 05:41 20:37 14h 56min 05:08 21:10
29 05:42 20:36 14h 54min 05:09 21:09
30 05:43 20:35 14h 51min 05:10 21:07
31 05:44 20:33 14h 49min 05:12 21:06

August
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 05:45 20:32 14h 46min 05:13 21:04
2 05:46 20:31 14h 44min 05:14 21:03
3 05:48 20:29 14h 41min 05:15 21:01
4 05:49 20:28 14h 39min 05:17 21:00
5 05:50 20:27 14h 36min 05:18 20:58
6 05:51 20:25 14h 34min 05:19 20:57
7 05:52 20:24 14h 31min 05:21 20:55
8 05:53 20:22 14h 28min 05:22 20:54
9 05:55 20:21 14h 26min 05:23 20:52
10 05:56 20:19 14h 23min 05:25 20:51
11 05:57 20:18 14h 20min 05:26 20:49
12 05:58 20:16 14h 17min 05:27 20:47
13 06:00 20:15 14h 15min 05:29 20:46
14 06:01 20:13 14h 12min 05:30 20:44
15 06:02 20:12 14h 9min 05:31 20:42
16 06:03 20:10 14h 6min 05:33 20:40
17 06:04 20:08 14h 3min 05:34 20:39
18 06:06 20:07 14h 0min 05:35 20:37
19 06:07 20:05 13h 58min 05:37 20:35
20 06:08 20:03 13h 55min 05:38 20:33
21 06:09 20:02 13h 52min 05:39 20:31
22 06:10 20:00 13h 49min 05:41 20:30
23 06:12 19:58 13h 46min 05:42 20:28
24 06:13 19:56 13h 43min 05:43 20:26
25 06:14 19:55 13h 40min 05:45 20:24
26 06:15 19:53 13h 37min 05:46 20:22
27 06:17 19:51 13h 34min 05:47 20:20
28 06:18 19:49 13h 31min 05:48 20:18
29 06:19 19:47 13h 28min 05:50 20:17
30 06:20 19:45 13h 25min 05:51 20:15
31 06:21 19:44 13h 22min 05:52 20:13

September
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 06:23 19:42 13h 19min 05:54 20:11
2 06:24 19:40 13h 16min 05:55 20:09
3 06:25 19:38 13h 12min 05:56 20:07
4 06:26 19:36 13h 9min 05:58 20:05
5 06:28 19:34 13h 6min 05:59 20:03
6 06:29 19:32 13h 3min 06:00 20:01
7 06:30 19:31 13h 0min 06:01 19:59
8 06:31 19:29 12h 57min 06:03 19:57
9 06:32 19:27 12h 54min 06:04 19:55
10 06:34 19:25 12h 51min 06:05 19:53
11 06:35 19:23 12h 48min 06:06 19:51
12 06:36 19:21 12h 44min 06:08 19:49
13 06:37 19:19 12h 41min 06:09 19:47
14 06:38 19:17 12h 38min 06:10 19:45
15 06:40 19:15 12h 35min 06:11 19:43
16 06:41 19:13 12h 32min 06:13 19:41
17 06:42 19:11 12h 29min 06:14 19:39
18 06:43 19:09 12h 26min 06:15 19:37
19 06:45 19:07 12h 22min 06:16 19:36
20 06:46 19:06 12h 19min 06:18 19:34
21 06:47 19:04 12h 16min 06:19 19:32
22 06:48 19:02 12h 13min 06:20 19:30
23 06:49 19:00 12h 10min 06:21 19:28
24 06:51 18:58 12h 7min 06:23 19:26
25 06:52 18:56 12h 3min 06:24 19:24
26 06:53 18:54 12h 0min 06:25 19:22
27 06:54 18:52 11h 57min 06:26 19:20
28 06:56 18:50 11h 54min 06:28 19:18
29 06:57 18:48 11h 51min 06:29 19:16
30 06:58 18:46 11h 48min 06:30 19:14

October
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 06:59 18:44 11h 45min 06:31 19:12
2 07:01 18:42 11h 41min 06:33 19:10
3 07:02 18:41 11h 38min 06:34 19:09
4 07:03 18:39 11h 35min 06:35 19:07
5 07:04 18:37 11h 32min 06:36 19:05
6 07:06 18:35 11h 29min 06:38 19:03
7 07:07 18:33 11h 26min 06:39 19:01
8 07:08 18:31 11h 23min 06:40 18:59
9 07:10 18:29 11h 19min 06:41 18:58
10 07:11 18:28 11h 16min 06:43 18:56
11 07:12 18:26 11h 13min 06:44 18:54
12 07:13 18:24 11h 10min 06:45 18:52
13 07:15 18:22 11h 7min 06:47 18:50
14 07:16 18:20 11h 4min 06:48 18:49
15 07:17 18:19 11h 1min 06:49 18:47
16 07:19 18:17 10h 58min 06:50 18:45
17 07:20 18:15 10h 55min 06:52 18:44
18 07:21 18:13 10h 52min 06:53 18:42
19 07:23 18:12 10h 49min 06:54 18:40
20 07:24 18:10 10h 46min 06:56 18:39
21 07:25 18:08 10h 43min 06:57 18:37
22 07:27 18:07 10h 40min 06:58 18:35
23 07:28 18:05 10h 37min 06:59 18:34
24 07:29 18:03 10h 34min 07:01 18:32
25 07:31 18:02 10h 31min 07:02 18:31
26 07:32 18:00 10h 28min 07:03 18:29
27 07:34 17:59 10h 25min 07:05 18:28
28 07:35 17:57 10h 22min 07:06 18:26
29 07:36 17:56 10h 19min 07:07 18:25
30 07:38 17:54 10h 16min 07:09 18:23
31 07:39 17:53 10h 13min 07:10 18:22

November
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 06:40 16:51 10h 10min 06:11 17:21
2 06:42 16:50 10h 8min 06:12 17:19
3 06:43 16:48 10h 5min 06:14 17:18
4 06:45 16:47 10h 2min 06:15 17:17
5 06:46 16:46 9h 59min 06:16 17:15
6 06:47 16:44 9h 57min 06:18 17:14
7 06:49 16:43 9h 54min 06:19 17:13
8 06:50 16:42 9h 51min 06:20 17:12
9 06:52 16:41 9h 49min 06:22 17:11
10 06:53 16:39 9h 46min 06:23 17:09
11 06:54 16:38 9h 44min 06:24 17:08
12 06:56 16:37 9h 41min 06:26 17:07
13 06:57 16:36 9h 39min 06:27 17:06
14 06:58 16:35 9h 36min 06:28 17:05
15 07:00 16:34 9h 34min 06:29 17:04
16 07:01 16:33 9h 31min 06:31 17:03
17 07:03 16:32 9h 29min 06:32 17:03
18 07:04 16:31 9h 27min 06:33 17:02
19 07:05 16:30 9h 25min 06:35 17:01
20 07:07 16:29 9h 22min 06:36 17:00
21 07:08 16:29 9h 20min 06:37 16:59
22 07:09 16:28 9h 18min 06:38 16:59
23 07:10 16:27 9h 16min 06:39 16:58
24 07:12 16:26 9h 14min 06:41 16:57
25 07:13 16:26 9h 12min 06:42 16:57
26 07:14 16:25 9h 10min 06:43 16:56
27 07:15 16:24 9h 9min 06:44 16:56
28 07:17 16:24 9h 7min 06:45 16:55
29 07:18 16:23 9h 5min 06:46 16:55
30 07:19 16:23 9h 3min 06:47 16:55

December
Date Sunrise Sunset Day length Civil dawn Civil dusk
1 07:20 16:23 9h 2min 06:49 16:54
2 07:21 16:22 9h 0min 06:50 16:54
3 07:22 16:22 8h 59min 06:51 16:54
4 07:24 16:22 8h 58min 06:52 16:53
5 07:25 16:21 8h 56min 06:53 16:53
6 07:26 16:21 8h 55min 06:54 16:53
7 07:27 16:21 8h 54min 06:55 16:53
8 07:28 16:21 8h 53min 06:56 16:53
9 07:29 16:21 8h 52min 06:56 16:53
10 07:29 16:21 8h 51min 06:57 16:53
11 07:30 16:21 8h 50min 06:58 16:53
12 07:31 16:21 8h 49min 06:59 16:53
13 07:32 16:21 8h 49min 07:00 16:53
14 07:33 16:21 8h 48min 07:01 16:53
15 07:34 16:21 8h 47min 07:01 16:54
16 07:34 16:22 8h 47min 07:02 16:54
17 07:35 16:22 8h 47min 07:03 16:54
18 07:36 16:22 8h 46min 07:03 16:55
19 07:36 16:23 8h 46min 07:04 16:55
20 07:37 16:23 8h 46min 07:04 16:56
21 07:37 16:24 8h 46min 07:05 16:56
22 07:38 16:24 8h 46min 07:05 16:56
23 07:38 16:25 8h 46min 07:06 16:57
24 07:39 16:25 8h 46min 07:06 16:58
25 07:39 16:26 8h 46min 07:07 16:58
26 07:39 16:27 8h 47min 07:07 16:59
27 07:40 16:27 8h 47min 07:07 17:00
28 07:40 16:28 8h 48min 07:08 17:00
29 07:40 16:29 8h 48min 07:08 17:01
30 07:40 16:30 8h 49min 07:08 17:02
31 07:40 16:31 8h 50min 07:08 17:03

How we calculate sunrise and sunset times

Sunrise and sunset times are calculated using PHP's date_sun_info() function, which uses the city's geographic coordinates (latitude and longitude) and the date to determine the exact position of the sun. The calculation accounts for atmospheric refraction, which bends sunlight and makes the sun appear slightly above the horizon even after it has geometrically set. Civil twilight times (dawn and dusk) indicate when the sun is 6 degrees below the horizon — there is still enough light for outdoor activities without artificial lighting.

Understanding Sunrise and Sunset Variations

The time of sunrise and sunset varies throughout the year due to the tilt of the Earth's axis (approximately 23.5 degrees). As the Earth orbits the sun, different parts of the planet receive more or less direct sunlight, causing the days to lengthen and shorten with the seasons.

Cities closer to the equator experience relatively consistent day lengths year-round (approximately 12 hours), while cities at higher latitudes see dramatic variations — from very short winter days to extremely long summer days. Above the Arctic Circle and below the Antarctic Circle, there are periods of continuous daylight (midnight sun) or continuous darkness (polar night).

The summer solstice (around June 21 in the Northern Hemisphere, December 21 in the Southern) marks the longest day, while the winter solstice marks the shortest. At the equinoxes (around March 20 and September 22), day and night are approximately equal worldwide.

Frequently Asked Questions

Why do sunrise and sunset times change throughout the year?

The Earth's axis is tilted at about 23.5 degrees relative to its orbital plane. As the Earth orbits the sun, different hemispheres are tilted toward or away from the sun, causing seasonal variations in daylight hours.

What is civil twilight?

Civil twilight is the period when the sun is between 0 and 6 degrees below the horizon. During this time, there is enough natural light for most outdoor activities without artificial lighting. Civil dawn occurs before sunrise, and civil dusk occurs after sunset.

Why are the times shown slightly different from what I see locally?

Small differences can occur due to the observer's exact position within a city, local terrain features (mountains, buildings), and atmospheric conditions. The times shown are calculated for the city center coordinates.

When does daylight saving time change in Ottawa in 2026?

In 2026, Ottawa observes daylight saving time with the following changes: clocks spring forward on 8 March, clocks fall back on 1 November. Clocks spring forward (gaining an hour of evening daylight) and fall back (returning to standard time) on these dates.

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