Sunset & Sunrise Today in Union City, California
Sunrise & Sunset Tomorrow in Union City: sunrise 7:16 AM, sunset 6:30 PM.
Today, Wednesday, October 14, sunset in Union City is at 6:31 PM and sunrise was at 7:15 AM, giving Union City 11h 15m between first and last light. Solar noon, when the sun is highest over Union City, is at 12:54 PM.
Because Union City is at 37.60° (the mid-latitudes), daylight swings noticeably between the long days of summer and the short days of winter. Each day is currently getting about 2 minutes shorter and 20 seconds. Through autumn, the sunset time in Union City keeps shifting, which is why it pays to check the exact figure day by day.
For photographers, the evening golden hour in Union City runs from about 5:57 PM to 6:48 PM — that warm, low, flattering light just before sunset. The blue hour follows, roughly 6:48 PM to 6:58 PM, as twilight deepens.
Tomorrow, sunset in Union City is at 6:30 PM and sunrise at 7:16 AM — about 2m 20s less daylight than today. The table below shows how sunrise and sunset in Union City drift across the whole year.
Autumn has arrived in Union City, and the days are drawing in. Over the course of the year, sunset in Union City ranges from as early as 4:49 PM (around November 30) to as late as 8:33 PM (around June 24). Its longest day lands on June 20 with 14h 45m of daylight, and its shortest on December 21 with just 9h 33m.
Moon in Union City today
Sunset today: Union City vs nearby cities
| City | Sunrise | Sunset | Day length |
|---|---|---|---|
| Union City | 7:15 AM | 6:31 PM | 11h 15m |
| Fremont | 7:15 AM | 6:31 PM | 11h 15m |
| Newark | 7:15 AM | 6:31 PM | 11h 16m |
| Hayward | 7:16 AM | 6:31 PM | 11h 15m |
| Castro Valley | 7:16 AM | 6:31 PM | 11h 15m |
Union City sun facts for 2026
- Longest day June 20 — 14h 45m of daylight
- Shortest day December 21 — 9h 33m
- Latest sunset 8:33 PM (June 24)
- Earliest sunset 4:49 PM (November 30)
- Earliest sunrise 5:46 AM (June 7)
- Latest sunrise 7:32 AM (October 31)
Solstices & equinoxes in Union City (2026)
| Event | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Mar 20, 2026 | 7:11 AM | 7:19 PM | 12h 08m |
| June solstice (longest day) | Jun 21, 2026 | 5:47 AM | 8:32 PM | 14h 45m |
| September equinox | Sep 22, 2026 | 6:56 AM | 7:04 PM | 12h 08m |
| December solstice (shortest day) | Dec 21, 2026 | 7:19 AM | 4:53 PM | 9h 33m |
Union City sunrise & sunset — next 14 days
| Date | Sunrise | Sunset | Day length | Change |
|---|---|---|---|---|
| Wed Oct 14 | 7:15 AM | 6:31 PM | 11h 15m | — |
| Thu Oct 15 | 7:16 AM | 6:30 PM | 11h 13m | −2m 20s |
| Fri Oct 16 | 7:17 AM | 6:28 PM | 11h 11m | −2m 19s |
| Sat Oct 17 | 7:18 AM | 6:27 PM | 11h 08m | −2m 19s |
| Sun Oct 18 | 7:19 AM | 6:26 PM | 11h 06m | −2m 18s |
| Mon Oct 19 | 7:20 AM | 6:24 PM | 11h 04m | −2m 17s |
| Tue Oct 20 | 7:21 AM | 6:23 PM | 11h 02m | −2m 17s |
| Wed Oct 21 | 7:22 AM | 6:22 PM | 10h 59m | −2m 17s |
| Thu Oct 22 | 7:23 AM | 6:20 PM | 10h 57m | −2m 15s |
| Fri Oct 23 | 7:24 AM | 6:19 PM | 10h 55m | −2m 15s |
| Sat Oct 24 | 7:25 AM | 6:18 PM | 10h 53m | −2m 15s |
| Sun Oct 25 | 7:26 AM | 6:17 PM | 10h 50m | −2m 13s |
| Mon Oct 26 | 7:27 AM | 6:16 PM | 10h 48m | −2m 13s |
| Tue Oct 27 | 7:28 AM | 6:14 PM | 10h 46m | −2m 12s |
Twilight times in Union City today
| Phase | Begins | Ends |
|---|---|---|
| Astronomical twilight | 5:48 AM | 7:58 PM |
| Nautical twilight | 6:18 AM | 7:28 PM |
| Civil twilight | 6:48 AM | 6:58 PM |
| Morning golden hour | 6:58 AM | 7:50 AM |
| Evening golden hour | 5:57 PM | 6:48 PM |
Civil, nautical and astronomical twilight describe how far the sun is below the horizon.
Sunrise & sunset in Union City by month
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 7:23 AM | 5:00 PM | 9h 37m |
| February | 7:11 AM | 5:32 PM | 10h 20m |
| March | 6:39 AM | 6:01 PM | 11h 22m |
| April | 6:53 AM | 7:30 PM | 12h 37m |
| May | 6:12 AM | 7:58 PM | 13h 45m |
| June | 5:48 AM | 8:23 PM | 14h 35m |
| July | 5:50 AM | 8:33 PM | 14h 42m |
| August | 6:12 AM | 8:15 PM | 14h 03m |
| September | 6:38 AM | 7:36 PM | 12h 57m |
| October | 7:04 AM | 6:50 PM | 11h 46m |
| November | 6:33 AM | 5:09 PM | 10h 35m |
| December | 7:04 AM | 4:49 PM | 9h 44m |
Times shown for the 1st of each month, local time.
Sunset & sunrise FAQ for Union City
What time is sunset in Union City today?
Sunset in Union City, California is at 6:31 PM today. It shifts by a minute or two each day as the seasons change.
What time is sunrise in Union City today?
Sunrise in Union City is at 7:15 AM today, with 11h 15m of daylight to follow.
What time is sunrise in Union City tomorrow?
Sunrise in Union City tomorrow is at 7:16 AM, and sunset tomorrow is at 6:30 PM.
What time is sunset in Union City tomorrow?
Sunset in Union City tomorrow is at 6:30 PM.
How long is the day in Union City today?
Union City gets 11h 15m of daylight today, between sunrise at 7:15 AM and sunset at 6:31 PM.
When is golden hour in Union City?
The evening golden hour in Union City is about 5:57 PM to 6:48 PM today — the warm, soft light ideal for photos.
When is blue hour in Union City?
The evening blue hour in Union City runs from about 6:48 PM to 6:58 PM today, just after sunset.
What time does it get dark in Union City?
After sunset at 6:31 PM, full darkness (the end of twilight) arrives in Union City at around 6:58 PM today.
When is solar noon in Union City?
Solar noon — when the sun is highest in the sky over Union City — is at 12:54 PM today.
Nearest cities to Union City
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Learn more about the sunset
- 🌇 What is golden hour?Golden hour is the warm, soft light just after sunrise and before sunset. Learn what it is, when it happens, how long it lasts, and how to use it.
- 🌆 What is blue hour?Discover what blue hour is, when it happens, how it differs from golden hour, and expert tips for photographing the soft blue twilight. Check exact blue.
- 🌌 Twilight explained: civil, nautical & astronomicalLearn the three phases of twilight—civil, nautical, astronomical—and what they mean for photographers, stargazers, and sunset lovers.
- 🌅 Why are sunsets red and orange?Discover the science behind red and orange sunsets, from Rayleigh scattering to air quality. Learn when and where to see the most vivid colors.
- 📸 The best time to photograph a sunsetDiscover the best time to photograph a sunset, from golden hour to blue hour. Learn exact timing, camera settings, and composition tips for stunning shots.
- ☀️ What is solar noon?Solar noon is when the sun reaches its highest point. Learn why it rarely matches 12:00 PM and how to find your exact solar noon.
- 📈 Why days get longer and shorter through the yearEarth's axial tilt drives seasonal day-length changes. Learn how solstices, equinoxes, and latitude affect daylight where you live.
- 🌞 The summer solstice explainedWhat causes the summer solstice, when it happens, and how it affects sunset times. Discover the science and beauty of the year's longest day.