Sunrise and sunset times in Union, IL
EditCheck out today's and tomorrow's sunrise and sunset times in Union, as well as the whole calendar for October 2026.
Noticed slightly different times? We upgraded our calculations
Today
October 20, 2026. Current time: 6:11:38 pm
Night ends at 5:39 am5:39:17 am
Start of astronomical twilight: the Sun is 18° below the horizon and the sky begins to brighten, too faintly to notice in a city.·First light at 6:44 am6:44:22 am
Dawn, the start of civil twilight: the Sun is 6° below the horizon, and there is enough light to be outdoors without artificial light.
Sunrise time: 7:12:50 am CDTWhen the top edge of the Sun appears over a flat, clear horizon. Behind hills, mountains or buildings the Sun appears a few minutes later (or more in a valley).
Sunset time: 6:04:20 pm CDTWhen the top edge of the Sun disappears below a flat, clear horizon. Behind hills, mountains or buildings the Sun disappears a few minutes earlier (or more in a valley).
Dark at 6:33 pm6:32:46 pm
Dusk, the end of civil twilight: the Sun reaches 6° below the horizon, and from then on artificial light is needed outdoors.·Night at 7:38 pm7:37:45 pm
End of astronomical twilight: the Sun is 18° below the horizon and the sky is dark enough to see the faintest stars. In a city it looks dark sooner.
Sun position chart
Now · Sun altitude: -2.14° (below the horizon) · Azimuth: 257.6° (W)
Daylight Golden Hour Dawn & dusk (civil twilight) Night
Day length: 10 hours, 51 minutes
Sunset in Union was 7 minutes ago
Moonset: 1:00 am
Moonrise: 3:30 pmMoon phase: 🌔 Waxing Gibbous (72%)🌕 Full moon: Oct 25 at 11:11 pm · 🌑 New moon: Nov 9 at 1:02 amTomorrow
October 21, 2026
Night ends at 5:40 am5:40:23 am
Start of astronomical twilight: the Sun is 18° below the horizon and the sky begins to brighten, too faintly to notice in a city.·First light at 6:46 am6:45:30 am
Dawn, the start of civil twilight: the Sun is 6° below the horizon, and there is enough light to be outdoors without artificial light.
Sunrise time: 7:14:01 am CDTWhen the top edge of the Sun appears over a flat, clear horizon. Behind hills, mountains or buildings the Sun appears a few minutes later (or more in a valley).
Sunset time: 6:02:49 pm CDTWhen the top edge of the Sun disappears below a flat, clear horizon. Behind hills, mountains or buildings the Sun disappears a few minutes earlier (or more in a valley).
Dark at 6:31 pm6:31:18 pm
Dusk, the end of civil twilight: the Sun reaches 6° below the horizon, and from then on artificial light is needed outdoors.·Night at 7:36 pm7:36:20 pm
End of astronomical twilight: the Sun is 18° below the horizon and the sky is dark enough to see the faintest stars. In a city it looks dark sooner.
Day length: 10 hours, 48 minutes
Tomorrow will be 3 minutes shorter than today in Union
Moonset: 2:05 am Moonrise: 3:52 pmMoon phase: 🌔 Waxing Gibbous (82%)
- Union, Illinois
- Latitude: 42.233078 (North)
- Longitude: -88.542313 (West)
- Time zone: Central Daylight Time (CDT, UTC−5)
Shortest day in Union, IL
The shortest day of the year will be in 2 months and 1 day, during the winter solstice on December 21, 2026, with a daylight length of 9 hours, 5 minutes.Longest day in Union, IL
The longest day of the year was around 3 months ago, during the summer solstice on June 21, 2026, with a daylight length of 15 hours, 16 minutes.
October 2026 - Union, Illinois - Sunrise and sunset calendar
Sunrise and sunset times, civil twilight start and end times as well as solar noon, and day length for every day of October in Union.
All times are in Union's time: Central Daylight Time (CDT, UTC−5).
The day length shortens by 1 hour, 22 minutes over the course of October 2026 in Union, IL - from 11 hours, 44 minutes on the first day to 10 hours, 22 minutes on the last day.
| Day | First LightStart of civil twilight: the Sun is 6° below the horizon, and there is enough light to be outdoors without artificial light. | SunriseWhen the top edge of the Sun appears over a flat, clear horizon. Behind hills, mountains or buildings the Sun appears a few minutes later (or more in a valley). | Sunrise Variation |
SunsetWhen the top edge of the Sun disappears below a flat, clear horizon. Behind hills, mountains or buildings the Sun disappears a few minutes earlier (or more in a valley). | Sunset Variation |
Last LightEnd of civil twilight: the Sun reaches 6° below the horizon, and from then on artificial light is needed outdoors. | Day Length | Day Length Variation | Solar NoonTime of day when the sun reaches its highest point in the sky. | Max Sun Altitude | Nautical Twilight Start | Nautical Twilight End | Astronomical Twilight Start | Astronomical Twilight End | Night LengthCalculated from this day's sunset to the next day's sunrise. | Moon phase | Solar Midnight | Sun DeclinationThe latitude where the Sun is directly overhead at solar noon (the Sun's declination). It moves between the two tropics through the year. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thu, Oct 1 | Twilight startStart of civil twilight: the Sun is 6° below the horizon, and there is enough light to be outdoors without artificial light.6:23:23 am | 6:51:20 am | +1m 5s | 6:35:30 pm | -1m 44s | Twilight endEnd of civil twilight: the Sun reaches 6° below the horizon, and from then on artificial light is needed outdoors.7:03:24 pm | 11h 44m 10s | -2m 49s | Solar noonTime of day when the sun reaches its highest point in the sky.12:43:46 pm | 44.37° | 5:50:52 am | 7:35:51 pm | 5:17:58 am | 8:08:39 pm | Night lengthCalculated from this day's sunset to the next day's sunrise.12h 16m 56s | 🌖 (65%)Waning Gibbous: 65% illuminated at midnight, at the end of the day | 12:43:56 am | 3.4° S |
| Fri, Oct 2 | 6:24:28 am | 6:52:26 am | +1m 6s | 6:33:46 pm | -1m 44s | 7:01:41 pm | 11h 41m 20s | -2m 49s | 12:43:27 pm | 43.98° | 5:51:58 am | 7:34:07 pm | 5:19:07 am | 8:06:52 pm | 12h 19m 45s | 🌖 (54%)Waning Gibbous: 54% illuminated at midnight, at the end of the day | 12:43:37 am | 3.8° S |
| Sat, Oct 3 | 6:25:33 am | 6:53:31 am | +1m 5s | 6:32:03 pm | -1m 43s | 6:59:58 pm | 11h 38m 32s | -2m 49s | 12:43:08 pm | 43.60° | 5:53:04 am | 7:32:23 pm | 5:20:16 am | 8:05:06 pm | 12h 22m 34s | 🌗 (43%) Last quarter at 8:25 amLast quarter at 8:25 am. At midnight, at the end of the day: 43% illuminated |
12:43:18 am | 4.2° S |
| Sun, Oct 4 | 6:26:38 am | 6:54:37 am | +1m 6s | 6:30:20 pm | -1m 43s | 6:58:16 pm | 11h 35m 43s | -2m 49s | 12:42:49 pm | 43.21° | 5:54:10 am | 7:30:41 pm | 5:21:25 am | 8:03:20 pm | 12h 25m 23s | 🌘 (32%)Waning Crescent: 32% illuminated at midnight, at the end of the day | 12:42:58 am | 4.6° S |
| Mon, Oct 5 | 6:27:44 am | 6:55:43 am | +1m 6s | 6:28:38 pm | -1m 42s | 6:56:35 pm | 11h 32m 55s | -2m 48s | 12:42:31 pm | 42.83° | 5:55:16 am | 7:28:59 pm | 5:22:33 am | 8:01:36 pm | 12h 28m 12s | 🌘 (22%)Waning Crescent: 22% illuminated at midnight, at the end of the day | 12:42:40 am | 4.9° S |
| Tue, Oct 6 | 6:28:49 am | 6:56:50 am | +1m 7s | 6:26:56 pm | -1m 42s | 6:54:54 pm | 11h 30m 6s | -2m 48s | 12:42:13 pm | 42.44° | 5:56:21 am | 7:27:18 pm | 5:23:41 am | 7:59:53 pm | 12h 31m 0s | 🌘 (13%)Waning Crescent: 13% illuminated at midnight, at the end of the day | 12:42:22 am | 5.3° S |
| Wed, Oct 7 | 6:29:54 am | 6:57:56 am | +1m 6s | 6:25:15 pm | -1m 41s | 6:53:14 pm | 11h 27m 19s | -2m 48s | 12:41:56 pm | 42.06° | 5:57:27 am | 7:25:37 pm | 5:24:49 am | 7:58:11 pm | 12h 33m 48s | 🌘 (7%)Waning Crescent: 7% illuminated at midnight, at the end of the day | 12:42:05 am | 5.7° S |
| Thu, Oct 8 | 6:31:00 am | 6:59:03 am | +1m 7s | 6:23:34 pm | -1m 41s | 6:51:34 pm | 11h 24m 31s | -2m 48s | 12:41:38 pm | 41.68° | 5:58:33 am | 7:23:58 pm | 5:25:56 am | 7:56:29 pm | 12h 36m 36s | 🌘 (2%)Waning Crescent: 2% illuminated at midnight, at the end of the day | 12:41:46 am | 6.1° S |
| Fri, Oct 9 | 6:32:06 am | 7:00:10 am | +1m 7s | 6:21:54 pm | -1m 40s | 6:49:56 pm | 11h 21m 44s | -2m 47s | 12:41:22 pm | 41.30° | 5:59:39 am | 7:22:19 pm | 5:27:04 am | 7:54:49 pm | 12h 39m 24s | 🌘 (0.3%)Waning Crescent: 0.3% illuminated at midnight, at the end of the day | 12:41:30 am | 6.5° S |
| Sat, Oct 10 | 6:33:12 am | 7:01:18 am | +1m 8s | 6:20:14 pm | -1m 40s | 6:48:18 pm | 11h 18m 56s | -2m 47s | 12:41:06 pm | 40.92° | 6:00:45 am | 7:20:41 pm | 5:28:11 am | 7:53:10 pm | 12h 42m 12s | 🌑 (0.5%) New moon at 10:50 amNew moon at 10:50 am. At midnight, at the end of the day: 0.5% illuminated |
12:41:14 am | 6.8° S |
| Sun, Oct 11 | 6:34:18 am | 7:02:26 am | +1m 8s | 6:18:35 pm | -1m 39s | 6:46:40 pm | 11h 16m 9s | -2m 47s | 12:40:50 pm | 40.54° | 6:01:50 am | 7:19:05 pm | 5:29:18 am | 7:51:32 pm | 12h 44m 59s | 🌒 (3%)Waxing Crescent: 3% illuminated at midnight, at the end of the day | 12:40:58 am | 7.2° S |
| Mon, Oct 12 | 6:35:24 am | 7:03:34 am | +1m 8s | 6:16:57 pm | -1m 38s | 6:45:04 pm | 11h 13m 23s | -2m 46s | 12:40:35 pm | 40.17° | 6:02:56 am | 7:17:29 pm | 5:30:25 am | 7:49:55 pm | 12h 47m 45s | 🌒 (7%)Waxing Crescent: 7% illuminated at midnight, at the end of the day | 12:40:43 am | 7.6° S |
| Tue, Oct 13 | 6:36:31 am | 7:04:42 am | +1m 8s | 6:15:19 pm | -1m 38s | 6:43:28 pm | 11h 10m 37s | -2m 46s | 12:40:20 pm | 39.80° | 6:04:02 am | 7:15:54 pm | 5:31:32 am | 7:48:20 pm | 12h 50m 32s | 🌒 (13%)Waxing Crescent: 13% illuminated at midnight, at the end of the day | 12:40:27 am | 8.0° S |
| Wed, Oct 14 | 6:37:38 am | 7:05:51 am | +1m 9s | 6:13:43 pm | -1m 36s | 6:41:54 pm | 11h 7m 52s | -2m 46s | 12:40:06 pm | 39.42° | 6:05:08 am | 7:14:20 pm | 5:32:39 am | 7:46:45 pm | 12h 53m 17s | 🌒 (20%)Waxing Crescent: 20% illuminated at midnight, at the end of the day | 12:40:13 am | 8.3° S |
| Thu, Oct 15 | 6:38:44 am | 7:07:00 am | +1m 9s | 6:12:07 pm | -1m 36s | 6:40:20 pm | 11h 5m 7s | -2m 45s | 12:39:52 pm | 39.05° | 6:06:14 am | 7:12:48 pm | 5:33:45 am | 7:45:12 pm | 12h 56m 2s | 🌒 (28%)Waxing Crescent: 28% illuminated at midnight, at the end of the day | 12:39:59 am | 8.7° S |
| Fri, Oct 16 | 6:39:51 am | 7:08:09 am | +1m 9s | 6:10:31 pm | -1m 36s | 6:38:47 pm | 11h 2m 22s | -2m 45s | 12:39:39 pm | 38.69° | 6:07:20 am | 7:11:16 pm | 5:34:52 am | 7:43:40 pm | 12h 58m 48s | 🌒 (36%)Waxing Crescent: 36% illuminated at midnight, at the end of the day | 12:39:45 am | 9.1° S |
| Sat, Oct 17 | 6:40:59 am | 7:09:19 am | +1m 10s | 6:08:57 pm | -1m 34s | 6:37:15 pm | 10h 59m 38s | -2m 44s | 12:39:27 pm | 38.32° | 6:08:26 am | 7:09:46 pm | 5:35:58 am | 7:42:09 pm | 13h 1m 32s | 🌒 (46%)Waxing Crescent: 46% illuminated at midnight, at the end of the day | 12:39:33 am | 9.4° S |
| Sun, Oct 18 | 6:42:06 am | 7:10:29 am | +1m 10s | 6:07:24 pm | -1m 33s | 6:35:44 pm | 10h 56m 55s | -2m 43s | 12:39:15 pm | 37.96° | 6:09:32 am | 7:08:16 pm | 5:37:05 am | 7:40:40 pm | 13h 4m 15s | 🌓 (55%) First quarter at 11:12 amFirst quarter at 11:12 am. At midnight, at the end of the day: 55% illuminated |
12:39:21 am | 9.8° S |
| Mon, Oct 19 | 6:43:14 am | 7:11:39 am | +1m 10s | 6:05:51 pm | -1m 33s | 6:34:15 pm | 10h 54m 12s | -2m 43s | 12:39:04 pm | 37.60° | 6:10:38 am | 7:06:48 pm | 5:38:11 am | 7:39:12 pm | 13h 6m 59s | 🌔 (65%)Waxing Gibbous: 65% illuminated at midnight, at the end of the day | 12:39:10 am | 10.2° S |
| Tue, Oct 20 | 6:44:22 am | 7:12:50 am | +1m 11s | 6:04:20 pm | -1m 31s | 6:32:46 pm | 10h 51m 30s | -2m 42s | 12:38:53 pm | 37.24° | 6:11:44 am | 7:05:21 pm | 5:39:17 am | 7:37:45 pm | 13h 9m 41s | 🌔 (74%)Waxing Gibbous: 74% illuminated at midnight, at the end of the day | 12:38:58 am | 10.5° S |
| Wed, Oct 21 | 6:45:30 am | 7:14:01 am | +1m 11s | 6:02:49 pm | -1m 31s | 6:31:18 pm | 10h 48m 48s | -2m 42s | 12:38:43 pm | 36.88° | 6:12:50 am | 7:03:55 pm | 5:40:23 am | 7:36:20 pm | 13h 12m 23s | 🌔 (82%)Waxing Gibbous: 82% illuminated at midnight, at the end of the day | 12:38:48 am | 10.9° S |
| Thu, Oct 22 | 6:46:38 am | 7:15:12 am | +1m 11s | 6:01:20 pm | -1m 29s | 6:29:52 pm | 10h 46m 8s | -2m 41s | 12:38:34 pm | 36.53° | 6:13:57 am | 7:02:31 pm | 5:41:29 am | 7:34:56 pm | 13h 15m 4s | 🌔 (89%)Waxing Gibbous: 89% illuminated at midnight, at the end of the day | 12:38:39 am | 11.2° S |
| Fri, Oct 23 | 6:47:47 am | 7:16:24 am | +1m 12s | 5:59:51 pm | -1m 29s | 6:28:27 pm | 10h 43m 27s | -2m 40s | 12:38:25 pm | 36.18° | 6:15:03 am | 7:01:08 pm | 5:42:35 am | 7:33:33 pm | 13h 17m 45s | 🌔 (95%)Waxing Gibbous: 95% illuminated at midnight, at the end of the day | 12:38:29 am | 11.6° S |
| Sat, Oct 24 | 6:48:55 am | 7:17:36 am | +1m 12s | 5:58:24 pm | -1m 27s | 6:27:03 pm | 10h 40m 48s | -2m 39s | 12:38:17 pm | 35.83° | 6:16:10 am | 6:59:46 pm | 5:43:41 am | 7:32:12 pm | 13h 20m 24s | 🌔 (99%)Waxing Gibbous: 99% illuminated at midnight, at the end of the day | 12:38:21 am | 11.9° S |
| Sun, Oct 25 | 6:50:04 am | 7:18:48 am | +1m 12s | 5:56:58 pm | -1m 26s | 6:25:40 pm | 10h 38m 10s | -2m 38s | 12:38:10 pm | 35.49° | 6:17:16 am | 6:58:26 pm | 5:44:47 am | 7:30:53 pm | 13h 23m 2s | 🌕 (99.8%) Full moon at 11:11 pmFull moon at 11:11 pm. At midnight, at the end of the day: 99.8% illuminated |
12:38:13 am | 12.3° S |
| Mon, Oct 26 | 6:51:13 am | 7:20:00 am | +1m 12s | 5:55:33 pm | -1m 25s | 6:24:18 pm | 10h 35m 33s | -2m 37s | 12:38:04 pm | 35.15° | 6:18:23 am | 6:57:07 pm | 5:45:52 am | 7:29:34 pm | 13h 25m 40s | 🌖 (98%)Waning Gibbous: 98% illuminated at midnight, at the end of the day | 12:38:07 am | 12.6° S |
| Tue, Oct 27 | 6:52:23 am | 7:21:13 am | +1m 13s | 5:54:09 pm | -1m 24s | 6:22:58 pm | 10h 32m 56s | -2m 37s | 12:37:58 pm | 34.81° | 6:19:30 am | 6:55:49 pm | 5:46:58 am | 7:28:18 pm | 13h 28m 17s | 🌖 (94%)Waning Gibbous: 94% illuminated at midnight, at the end of the day | 12:38:01 am | 13.0° S |
| Wed, Oct 28 | 6:53:32 am | 7:22:26 am | +1m 13s | 5:52:46 pm | -1m 23s | 6:21:39 pm | 10h 30m 20s | -2m 36s | 12:37:53 pm | 34.47° | 6:20:37 am | 6:54:33 pm | 5:48:04 am | 7:27:03 pm | 13h 30m 54s | 🌖 (87%)Waning Gibbous: 87% illuminated at midnight, at the end of the day | 12:37:55 am | 13.3° S |
| Thu, Oct 29 | 6:54:42 am | 7:23:40 am | +1m 14s | 5:51:25 pm | -1m 21s | 6:20:22 pm | 10h 27m 45s | -2m 34s | 12:37:49 pm | 34.14° | 6:21:44 am | 6:53:18 pm | 5:49:10 am | 7:25:50 pm | 13h 33m 28s | 🌖 (79%)Waning Gibbous: 79% illuminated at midnight, at the end of the day | 12:37:51 am | 13.6° S |
| Fri, Oct 30 | 6:55:51 am | 7:24:53 am | +1m 13s | 5:50:05 pm | -1m 20s | 6:19:06 pm | 10h 25m 12s | -2m 33s | 12:37:46 pm | 33.82° | 6:22:50 am | 6:52:05 pm | 5:50:15 am | 7:24:38 pm | 13h 36m 2s | 🌖 (68%)Waning Gibbous: 68% illuminated at midnight, at the end of the day | 12:37:48 am | 14.0° S |
| Sat, Oct 31 | 6:57:01 am | 7:26:07 am | +1m 14s | 5:48:47 pm | -1m 18s | 6:17:51 pm | 10h 22m 40s | -2m 32s | 12:37:43 pm | 33.49° | 6:23:57 am | 6:50:54 pm | 5:51:21 am | 7:23:28 pm | 13h 38m 34s | 🌖 (57%)Waning Gibbous: 57% illuminated at midnight, at the end of the day | 12:37:44 am | 14.3° S |
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Year distribution of sunrise and sunset times in Union, IL - 2026
The following graph shows sunrise and sunset times in Union, IL for every day of the year. There are two jumps in the graph that represent the hour change for Daylight Saving Time (DST) in Union, IL.
Daylight Dawn & dusk (civil twilight) Night Solar noon · Vertical steps in the curves = DST clock change
Earliest and latest sunrise and sunset in Union, IL
In Union, IL, the earliest sunrise of 2026 is on June 14 at 5:17 am, while the latest sunrise is on October 31 at 7:26 am. The earliest sunset is on December 8 at 4:21 pm, and the latest sunset is on June 26 at 8:34 pm.
Union, IL gets 6h 10m more daylight on the longest day than on the shortest one (15h 16m versus 9h 05m). Averaged over the whole year, a day lasts 12h 12m.
Union, IL Analemma
Due to Earth's tilted axis and slightly elliptical orbit, the Sun is never seen in the same position at noon in Union. Throughout the year, it slowly traces this figure-eight:
Move along the curve to read the Sun's altitude and azimuth for any day of the year in Union.
Over the year, the 12:00 Sun swings between just 24.3° above the horizon (around Dec 21) and 71.2° (around Jun 21) in Union. The smaller loop sits at the top, the signature of a Northern Hemisphere analemma.
Detailed Analemma Chart
The technical chart below plots one dot per day, labels the first day of each month, marks the solstices, equinoxes, perihelion and aphelion, and draws the noon altitude of the equinoxes (90° minus your latitude) together with its ±23.4° seasonal limits.
Why does the figure look wider here than in the sky view above?
Both draw the same data, but with different conventions. The sky view uses the same scale on both axes, so it shows the analemma with its true proportions, as a camera would capture it: about 47° tall and only a few degrees wide. This chart, like most technical analemma diagrams, stretches each axis independently to fill the plot, expanding the narrow azimuth range several times so its day-to-day variation can actually be read. Also, azimuth is not sky distance: near the zenith, one degree of azimuth spans much less than one degree across the sky, which further widens the figure in this representation.
Places near Union, IL
These nearby towns and cities have almost the same sunrise and sunset times as Union, IL — the difference is only seconds to a couple of minutes. Select any place to see its own sun calendar:
Marengo 4 miHuntley 7 miWoodstock 7 miVillage of Lakewood 8 miHampshire 9 miBull Valley 11 miLake in the Hills 11 miCrystal Lake 12 mi