April 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 Tue	03:37	04:20	05:01	05:34	82.5	12:04	12.0	-3.8	13:02	1:05	277.8	18:35	46.6	19:08	19:49	20:33	00:04	10:56	0:55	06:30	39.6	23:36	49.5
2 Wed	03:34	04:18	04:59	05:31	81.9	12:03	13.0	-3.5	13:05	1:05	278.4	18:37	60.2	19:09	19:51	20:35	00:03	10:52	0:54	07:00	53.6	never
3 Thu	03:31	04:15	04:56	05:29	81.3	12:03	14.0	-3.2	13:09	1:06	279.0	18:38	73.3	19:11	19:53	20:37	00:03	10:48	0:54	07:44	67.4	01:01	63.7
4 Fri	03:28	04:13	04:54	05:27	80.7	12:03	15.0	-2.9	13:13	1:06	279.7	18:40	86.1	19:13	19:54	20:39	00:03	10:44	0:54	08:44	80.8	02:10	77.4
5 Sat	03:25	04:10	04:52	05:25	80.1	12:03	16.0	-2.6	13:17	1:06	280.3	18:42	98.4	19:15	19:56	20:42	00:02	10:41	0:53	09:57	94.0	02:58	90.4
6 Sun	03:22	04:08	04:49	05:22	79.4	12:02	16.9	-2.3	13:21	1:07	280.9	18:43	110.4	19:16	19:58	20:44	00:02	10:37	0:53	11:17	106.7	03:31	102.8
7 Mon	03:19	04:05	04:47	05:20	78.8	12:02	17.9	-2.0	13:25	1:07	281.5	18:45	122.0	19:18	20:00	20:47	00:02	10:33	0:53	12:37	119.1	03:53	114.9
8 Tue	03:17	04:03	04:45	05:18	78.2	12:02	18.9	-1.8	13:29	1:07	282.1	18:47	133.4	19:20	20:02	20:49	00:02	10:29	0:52	13:54	131.1	04:09	126.5
9 Wed	03:14	04:00	04:42	05:16	77.6	12:01	19.9	-1.5	13:33	1:08	282.7	18:48	144.6	19:22	20:04	20:51	00:01	10:25	0:52	15:07	142.9	04:21	137.9
10 Thu	03:11	03:58	04:40	05:13	77.0	12:01	20.9	-1.2	13:37	1:08	283.3	18:50	155.7	19:24	20:06	20:54	00:01	10:21	0:52	16:19	154.5	04:32	149.1
11 Fri	03:08	03:55	04:38	05:11	76.4	12:01	21.8	-1.0	13:41	1:08	283.9	18:52	166.6	19:25	20:08	20:56	00:01	10:17	0:51	17:29	166.0	04:41	160.2
12 Sat	03:05	03:52	04:36	05:09	75.8	12:01	22.8	-0.7	13:44	1:09	284.5	18:54	177.5	19:27	20:11	20:59	00:01	10:13	0:51	18:39	177.4	04:51	171.2
13 Sun	03:02	03:50	04:33	05:07	75.2	12:00	23.8	-0.5	13:48	1:09	285.1	18:55	188.4	19:29	20:13	21:01	00:00	10:09	0:51	19:51	188.8	05:01	182.1
14 Mon	02:59	03:47	04:31	05:05	74.6	12:00	24.8	-0.2	13:52	1:09	285.7	18:57	199.2	19:31	20:15	21:04	00:00	10:06	0:50	21:04	200.2	05:13	193.0
15 Tue	02:56	03:45	04:29	05:03	74.1	12:00	25.8	0.0	13:56	1:10	286.3	18:59	210.2	19:33	20:17	21:07	00:00	10:02	0:50	22:18	211.7	05:29	204.0
16 Wed	02:52	03:42	04:26	05:00	73.5	12:00	26.7	+0.3	14:00	1:10	286.9	19:00	221.1	19:34	20:19	21:09	00:00	09:58	0:50	23:30	223.2	05:50	215.1
17 Thu	02:49	03:40	04:24	04:58	72.9	12:00	27.7	+0.5	14:04	1:10	287.5	19:02	232.2	19:36	20:21	21:12	23:59	09:54	0:50	never		06:20	226.4
18 Fri	02:46	03:37	04:22	04:56	72.3	11:59	28.7	+0.7	14:07	1:11	288.0	19:04	243.5	19:38	20:23	21:15	23:59	09:50	0:49	00:36	234.8	07:03	237.8
19 Sat	02:43	03:35	04:20	04:54	71.7	11:59	29.7	+0.9	14:11	1:11	288.6	19:05	255.0	19:40	20:25	21:17	23:59	09:47	0:49	01:30	246.6	08:00	249.7
20 Sun	02:40	03:32	04:17	04:52	71.2	11:59	30.7	+1.1	14:15	1:11	289.2	19:07	266.8	19:42	20:27	21:20	23:59	09:43	0:49	02:10	258.4	09:11	261.9
21 Mon	02:37	03:29	04:15	04:50	70.6	11:59	31.6	+1.3	14:19	1:12	289.7	19:09	278.9	19:44	20:30	21:23	23:59	09:39	0:48	02:39	270.5	10:31	274.5
22 Tue	02:33	03:27	04:13	04:48	70.0	11:58	32.6	+1.5	14:22	1:12	290.3	19:10	291.4	19:45	20:32	21:26	23:58	09:35	0:48	03:01	282.9	11:55	287.6
23 Wed	02:30	03:24	04:11	04:46	69.5	11:58	33.6	+1.7	14:26	1:12	290.8	19:12	304.3	19:47	20:34	21:29	23:58	09:32	0:48	03:17	295.7	13:21	301.2
24 Thu	02:27	03:22	04:08	04:44	68.9	11:58	34.6	+1.9	14:30	1:12	291.4	19:14	317.7	19:49	20:36	21:32	23:58	09:28	0:47	03:31	308.9	14:48	315.2
25 Fri	02:24	03:19	04:06	04:42	68.4	11:58	35.5	+2.1	14:34	1:13	291.9	19:15	331.5	19:51	20:38	21:35	23:58	09:24	0:47	03:43	322.6	16:16	329.8
26 Sat	02:20	03:17	04:04	04:40	67.8	11:58	36.5	+2.2	14:37	1:13	292.5	19:17	345.6	19:53	20:41	21:38	23:58	09:21	0:47	03:56	336.6	17:48	344.7
27 Sun	02:17	03:14	04:02	04:38	67.3	11:58	37.5	+2.4	14:41	1:13	293.0	19:19	359.9	19:55	20:43	21:41	23:58	09:17	0:46	04:11	350.9	19:23	359.9
28 Mon	02:13	03:12	04:00	04:36	66.8	11:57	38.4	+2.5	14:44	1:14	293.6	19:20	14.2	19:56	20:45	21:44	23:57	09:14	0:46	04:30	5.3	21:00	15.1
29 Tue	02:10	03:09	03:58	04:34	66.2	11:57	39.4	+2.7	14:48	1:14	294.1	19:22	28.3	19:58	20:47	21:47	23:57	09:10	0:46	04:56	19.8	22:33	30.1
30 Wed	02:06	03:07	03:56	04:32	65.7	11:57	40.4	+2.8	14:52	1:14	294.6	19:24	42.1	20:00	20:50	21:51	23:57	09:07	0:46	05:34	34.2	23:53	44.6

° 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/>