September 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 Mon	03:08	03:55	04:38	05:11	76.8	12:00	159.3	+0.1	13:36	1:08	282.9	18:47	106.9	19:21	20:03	20:50	00:00	10:26	0:52	15:47	105.4	22:12	108.5
2 Tue	03:10	03:57	04:40	05:13	77.4	12:00	160.3	+0.4	13:32	1:08	282.3	18:45	118.2	19:18	20:01	20:47	23:59	10:29	0:52	16:37	117.2	23:13	120.4
3 Wed	03:13	03:59	04:41	05:15	78.0	11:59	161.2	+0.7	13:28	1:07	281.7	18:43	129.9	19:16	19:58	20:44	23:59	10:33	0:53	17:15	129.2	never
4 Thu	03:15	04:01	04:43	05:16	78.6	11:59	162.2	+1.0	13:24	1:07	281.1	18:41	142.0	19:14	19:55	20:41	23:59	10:37	0:53	17:42	141.5	00:28	132.8
5 Fri	03:17	04:03	04:45	05:18	79.2	11:59	163.2	+1.4	13:21	1:07	280.5	18:38	154.4	19:11	19:53	20:38	23:58	10:41	0:53	18:02	154.1	01:50	145.6
6 Sat	03:19	04:05	04:47	05:19	79.8	11:58	164.2	+1.7	13:17	1:06	279.9	18:36	167.1	19:09	19:50	20:35	23:58	10:45	0:54	18:17	167.0	03:15	158.9
7 Sun	03:22	04:07	04:48	05:21	80.4	11:58	165.1	+2.0	13:13	1:06	279.3	18:34	180.2	19:07	19:48	20:32	23:58	10:49	0:54	18:30	180.2	04:41	172.6
8 Mon	03:24	04:08	04:50	05:23	81.0	11:58	166.1	+2.4	13:09	1:06	278.7	18:32	193.6	19:04	19:45	20:30	23:57	10:53	0:54	18:42	193.7	06:07	186.6
9 Tue	03:26	04:10	04:52	05:24	81.6	11:57	167.1	+2.7	13:05	1:05	278.1	18:29	207.1	19:02	19:43	20:27	23:57	10:56	0:55	18:55	207.4	07:34	200.9
10 Wed	03:28	04:12	04:53	05:26	82.2	11:57	168.0	+3.1	13:01	1:05	277.4	18:27	220.7	18:59	19:40	20:24	23:57	11:00	0:55	19:10	221.1	09:03	215.4
11 Thu	03:30	04:14	04:55	05:27	82.8	11:57	169.0	+3.4	12:57	1:05	276.8	18:25	234.3	18:57	19:38	20:21	23:56	11:04	0:55	19:28	234.9	10:34	229.9
12 Fri	03:32	04:16	04:57	05:29	83.5	11:56	170.0	+3.8	12:54	1:04	276.2	18:22	247.8	18:55	19:35	20:18	23:56	11:08	0:56	19:54	248.7	12:06	244.3
13 Sat	03:35	04:18	04:58	05:31	84.1	11:56	171.0	+4.1	12:50	1:04	275.6	18:20	261.1	18:52	19:33	20:16	23:56	11:12	0:56	20:31	262.3	13:34	258.5
14 Sun	03:37	04:19	05:00	05:32	84.7	11:56	171.9	+4.5	12:46	1:04	275.0	18:18	274.2	18:50	19:30	20:13	23:55	11:16	0:56	21:24	275.9	14:50	272.3
15 Mon	03:39	04:21	05:02	05:34	85.3	11:55	172.9	+4.9	12:42	1:03	274.4	18:16	287.1	18:48	19:28	20:10	23:55	11:20	0:57	22:34	289.3	15:47	285.7
16 Tue	03:41	04:23	05:03	05:35	85.9	11:55	173.9	+5.2	12:38	1:03	273.7	18:13	299.7	18:45	19:25	20:07	23:55	11:24	0:57	23:54	302.6	16:26	298.7
17 Wed	03:43	04:25	05:05	05:37	86.6	11:54	174.9	+5.6	12:34	1:03	273.1	18:11	312.0	18:43	19:23	20:05	23:54	11:28	0:57	never		16:53	311.3
18 Thu	03:45	04:27	05:06	05:38	87.2	11:54	175.8	+5.9	12:30	1:03	272.5	18:09	324.1	18:41	19:20	20:02	23:54	11:31	0:58	01:18	315.6	17:11	323.6
19 Fri	03:47	04:28	05:08	05:40	87.8	11:54	176.8	+6.3	12:26	1:02	271.9	18:06	336.0	18:38	19:18	19:59	23:54	11:35	0:58	02:39	328.4	17:25	335.7
20 Sat	03:49	04:30	05:10	05:42	88.4	11:53	177.8	+6.6	12:22	1:02	271.3	18:04	347.7	18:36	19:15	19:57	23:53	11:39	0:58	03:57	340.8	17:37	347.4
21 Sun	03:51	04:32	05:11	05:43	89.0	11:53	178.8	+7.0	12:18	1:02	270.6	18:02	359.1	18:34	19:13	19:54	23:53	11:43	0:59	05:12	353.0	17:47	359.0
22 Mon	03:52	04:34	05:13	05:45	89.7	11:53	179.7	+7.3	12:15	1:01	270.0	17:59	10.4	18:31	19:10	19:51	23:52	11:47	0:59	06:25	5.0	17:57	10.4
23 Tue	03:54	04:35	05:15	05:47	90.3	11:52	180.7	+7.7	12:11	1:01	269.4	17:57	21.5	18:29	19:08	19:49	23:52	11:51	0:59	07:38	16.7	18:07	21.6
24 Wed	03:56	04:37	05:16	05:48	90.9	11:52	181.7	+8.0	12:07	1:01	268.8	17:55	32.5	18:27	19:06	19:46	23:52	11:55	1:00	08:50	28.3	18:20	32.7
25 Thu	03:58	04:39	05:18	05:50	91.6	11:52	182.7	+8.4	12:03	1:00	268.1	17:53	43.4	18:24	19:03	19:44	23:51	11:59	1:00	10:04	39.8	18:35	43.7
26 Fri	04:00	04:40	05:20	05:51	92.2	11:51	183.7	+8.7	11:59	1:00	267.5	17:50	54.2	18:22	19:01	19:41	23:51	12:03	1:00	11:18	51.3	18:56	54.7
27 Sat	04:02	04:42	05:21	05:53	92.8	11:51	184.6	+9.1	11:55	1:00	266.9	17:48	65.1	18:20	18:59	19:39	23:51	12:07	1:01	12:29	62.7	19:24	65.8
28 Sun	04:04	04:44	05:23	05:55	93.4	11:51	185.6	+9.4	11:51	0:59	266.3	17:46	76.0	18:17	18:56	19:36	23:50	12:11	1:01	13:35	74.1	20:04	77.1
29 Mon	04:05	04:45	05:24	05:56	94.1	11:50	186.6	+9.8	11:47	0:59	265.6	17:43	87.1	18:15	18:54	19:34	23:50	12:14	1:01	14:29	85.6	20:58	88.6
30 Tue	04:07	04:47	05:26	05:58	94.7	11:50	187.6	+10.1	11:43	0:59	265.0	17:41	98.4	18:13	18:51	19:31	23:50	12:18	1:02	15:11	97.2	22:06	100.5

° 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/>