August 2025 (Gregorian)

Twilight and Astronomy Information

Greenwich Observatory, UK: 51.4778°N, 0°E, elevation 46.9m, time zone UT (Standard Time)

Date	Start of Twilight			Sun Rise	Rise Az °	Mid Day	° Sun Long	EoT	Day Span	Day Hour	Set Az °	Sun Set	° Moon Phase	End of Twilight			Mid- Night	Night Span	Night Hour	Moon Rise	° Rise Phase	Moon Set	° Set Phase
	Astro	Sea	Civil											Civil	Sea	Astro
1 Fri	01:33	02:49	03:44	04:22	60.3	12:06	129.5	-6.3	15:27	1:17	299.4	19:49	93.2	20:28	21:22	22:36	00:06	08:35	0:43	13:24	90.3	22:08	94.3
2 Sat	01:37	02:51	03:45	04:24	60.8	12:06	130.5	-6.3	15:24	1:17	298.9	19:48	104.2	20:26	21:19	22:32	00:06	08:38	0:43	14:38	101.8	22:27	105.4
3 Sun	01:41	02:54	03:47	04:25	61.2	12:06	131.4	-6.2	15:20	1:17	298.5	19:46	115.2	20:24	21:17	22:28	00:06	08:41	0:43	15:51	113.3	22:54	116.6
4 Mon	01:45	02:56	03:49	04:27	61.7	12:06	132.4	-6.1	15:17	1:16	298.0	19:44	126.3	20:22	21:15	22:24	00:06	08:44	0:44	16:59	125.0	23:32	128.1
5 Tue	01:49	02:58	03:51	04:29	62.2	12:06	133.3	-6.0	15:14	1:16	297.5	19:42	137.7	20:20	21:12	22:20	00:06	08:48	0:44	17:57	136.9	never
6 Wed	01:53	03:00	03:52	04:30	62.6	12:06	134.3	-5.9	15:11	1:16	297.0	19:41	149.4	20:18	21:10	22:16	00:06	08:51	0:44	18:43	148.9	00:26	140.0
7 Thu	01:56	03:03	03:54	04:32	63.1	12:06	135.2	-5.8	15:07	1:16	296.6	19:39	161.4	20:16	21:07	22:12	00:06	08:54	0:45	19:16	161.2	01:34	152.3
8 Fri	02:00	03:05	03:56	04:33	63.6	12:06	136.2	-5.6	15:04	1:15	296.1	19:37	173.6	20:14	21:05	22:09	00:06	08:58	0:45	19:39	173.6	02:53	165.0
9 Sat	02:03	03:07	03:58	04:35	64.1	12:05	137.2	-5.5	15:00	1:15	295.6	19:35	186.1	20:12	21:02	22:05	00:05	09:01	0:45	19:57	186.3	04:17	178.1
10 Sun	02:06	03:09	03:59	04:36	64.6	12:05	138.1	-5.3	14:57	1:15	295.1	19:33	198.9	20:10	21:00	22:01	00:05	09:05	0:45	20:11	199.2	05:42	191.5
11 Mon	02:10	03:12	04:01	04:38	65.1	12:05	139.1	-5.2	14:53	1:14	294.6	19:31	211.8	20:08	20:57	21:58	00:05	09:08	0:46	20:23	212.3	07:07	205.1
12 Tue	02:13	03:14	04:03	04:39	65.6	12:05	140.0	-5.0	14:50	1:14	294.1	19:29	224.9	20:06	20:55	21:54	00:05	09:12	0:46	20:35	225.5	08:31	218.9
13 Wed	02:16	03:16	04:05	04:41	66.1	12:05	141.0	-4.8	14:46	1:14	293.5	19:28	238.1	20:04	20:52	21:51	00:05	09:15	0:46	20:48	238.8	09:56	232.8
14 Thu	02:19	03:18	04:07	04:43	66.7	12:05	142.0	-4.6	14:43	1:14	293.0	19:26	251.3	20:01	20:49	21:47	00:05	09:19	0:47	21:03	252.2	11:22	246.9
15 Fri	02:22	03:20	04:08	04:44	67.2	12:04	142.9	-4.4	14:39	1:13	292.5	19:24	264.6	19:59	20:47	21:44	00:04	09:22	0:47	21:23	265.7	12:52	261.0
16 Sat	02:25	03:22	04:10	04:46	67.7	12:04	143.9	-4.2	14:36	1:13	291.9	19:22	277.8	19:57	20:44	21:41	00:04	09:26	0:47	21:51	279.2	14:21	275.0
17 Sun	02:28	03:25	04:12	04:47	68.3	12:04	144.8	-4.0	14:32	1:13	291.4	19:20	291.0	19:55	20:42	21:37	00:04	09:29	0:47	22:33	292.7	15:46	289.0
18 Mon	02:31	03:27	04:14	04:49	68.8	12:04	145.8	-3.8	14:28	1:12	290.9	19:17	304.0	19:53	20:39	21:34	00:04	09:33	0:48	23:31	306.3	16:56	302.7
19 Tue	02:34	03:29	04:15	04:51	69.4	12:04	146.8	-3.6	14:25	1:12	290.3	19:15	316.9	19:50	20:37	21:31	00:03	09:37	0:48	never		17:48	316.2
20 Wed	02:37	03:31	04:17	04:52	69.9	12:03	147.7	-3.3	14:21	1:12	289.8	19:13	329.7	19:48	20:34	21:27	00:03	09:40	0:48	00:46	319.9	18:23	329.2
21 Thu	02:40	03:33	04:19	04:54	70.5	12:03	148.7	-3.1	14:17	1:11	289.2	19:11	342.2	19:46	20:32	21:24	00:03	09:44	0:49	02:09	333.3	18:47	342.0
22 Fri	02:42	03:35	04:21	04:55	71.0	12:03	149.7	-2.8	14:14	1:11	288.7	19:09	354.5	19:44	20:29	21:21	00:03	09:48	0:49	03:34	346.5	19:04	354.4
23 Sat	02:45	03:37	04:22	04:57	71.6	12:03	150.6	-2.6	14:10	1:11	288.1	19:07	6.5	19:41	20:26	21:18	00:02	09:52	0:49	04:56	359.4	19:17	6.6
24 Sun	02:48	03:39	04:24	04:59	72.1	12:02	151.6	-2.3	14:06	1:11	287.5	19:05	18.2	19:39	20:24	21:15	00:02	09:55	0:50	06:14	12.0	19:28	18.4
25 Mon	02:50	03:41	04:26	05:00	72.7	12:02	152.6	-2.0	14:03	1:10	287.0	19:03	29.7	19:37	20:21	21:11	00:02	09:59	0:50	07:28	24.2	19:38	30.0
26 Tue	02:53	03:43	04:28	05:02	73.3	12:02	153.5	-1.8	13:59	1:10	286.4	19:01	40.9	19:35	20:19	21:08	00:02	10:03	0:50	08:41	36.1	19:48	41.3
27 Wed	02:56	03:45	04:29	05:03	73.9	12:01	154.5	-1.5	13:55	1:10	285.8	18:58	52.0	19:32	20:16	21:05	00:01	10:07	0:51	09:54	47.8	20:00	52.5
28 Thu	02:58	03:47	04:31	05:05	74.4	12:01	155.4	-1.2	13:51	1:09	285.2	18:56	62.9	19:30	20:13	21:02	00:01	10:10	0:51	11:07	59.4	20:13	63.5
29 Fri	03:01	03:49	04:33	05:07	75.0	12:01	156.4	-0.9	13:47	1:09	284.6	18:54	73.8	19:28	20:11	20:59	00:01	10:14	0:51	12:20	70.9	20:30	74.6
30 Sat	03:03	03:51	04:35	05:08	75.6	12:01	157.4	-0.6	13:44	1:09	284.1	18:52	84.7	19:25	20:08	20:56	00:00	10:18	0:51	13:34	82.3	20:53	85.6
31 Sun	03:05	03:53	04:36	05:10	76.2	12:00	158.3	-0.3	13:40	1:08	283.5	18:50	95.7	19:23	20:06	20:53	00:00	10:22	0:52	14:44	93.8	21:26	96.9

° Solar Longitude [Sun Long] and Equation of Time [EoT, in minutes] are as of Mid Day = Local Apparent Noon.
° Sunrise/Sunset Azimuth [Rise/Set Az] measured clockwise from true north with center of Sun at horizon (east = 90°, west = 270°). Moon Phase at Sunset.

Note Twilight Solar Depressions: Civil = 6° (see brightest stars, aviation end or start of night, then artificial lights for outdoor activities),
Nautical [Sea] = 12° (horizon no longer visible at sea), Astronomical [Astro] = 18° (minimal atmospheric scatter of sunlight).

Generated by Kalendis 11.167(1697)-Tu <http://individual.utoronto.ca/kalendis/>