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Sun times

Iowa · United States

Sunrise and Sunset Times Today in Mason City, Iowa

· CDT (UTC−05:00)

Sunset in Mason City is at 6:11 PM and sunrise is at 7:41 AM. There are 10h 30m of daylight.

Sunset

6:11 PM

253° W

Sunrise

7:41 AM

107° E

Daylight

10h 30m

0h 03m shorter than the previous day

Solar noon

12:57 PM

Sun altitude: 33.9°

SunriseSunset

Live countdown to the next sunrise or sunset

Times use the city center and a clear, level horizon. Hills, buildings and weather can change what you see.

Tomorrow in Mason City

Wednesday, October 28, 2026: sunset 6:10 PM, sunrise 7:43 AM. Daylight: 10h 27m.


Twilight and golden hour

Morning light

  • Astronomical dawn (−18°)6:06 AM
  • Nautical dawn (−12°)6:39 AM
  • Civil dawn (−6°)7:12 AM
  • Golden hour (−4° to +6°)7:23 AM – 8:21 AM

Evening light

  • Golden hour (+6° to −4°)5:31 PM – 6:29 PM
  • Civil dusk (−6°)6:41 PM
  • Nautical dusk (−12°)7:14 PM
  • Astronomical dusk (−18°)7:47 PM

Golden hour is an approximate photography window, not a weather forecast. About twilight and light thresholds.

Local time in Mason City

America/Chicago · CDT · UTC−05:00. Daylight saving time is in effect.

The next clock change is on Sunday, November 1, 2026, from UTC−05:00 to UTC−06:00. Times in the calendar already include this change.

Clock changes and regional exceptions in United States

IANA timezone data 2026e. Future rules can change; corrections are welcome.

Sunrise and sunset calendar for Mason City


2026-10. Local times in America/Chicago; clock changes apply on their actual dates.
DateSunsetSunriseDaylight
6:54 PM7:10 AM11h 43m
6:52 PM7:11 AM11h 41m
6:50 PM7:13 AM11h 38m
6:48 PM7:14 AM11h 35m
6:47 PM7:15 AM11h 32m
6:45 PM7:16 AM11h 29m
6:43 PM7:17 AM11h 26m
6:41 PM7:18 AM11h 23m
6:40 PM7:20 AM11h 20m
6:38 PM7:21 AM11h 17m
6:36 PM7:22 AM11h 14m
6:35 PM7:23 AM11h 12m
6:33 PM7:24 AM11h 09m
6:31 PM7:25 AM11h 06m
6:30 PM7:27 AM11h 03m
6:28 PM7:28 AM11h 00m
6:26 PM7:29 AM10h 57m
6:25 PM7:30 AM10h 55m
6:23 PM7:32 AM10h 52m
6:22 PM7:33 AM10h 49m
6:20 PM7:34 AM10h 46m
6:19 PM7:35 AM10h 43m
6:17 PM7:36 AM10h 41m
6:16 PM7:38 AM10h 38m
6:14 PM7:39 AM10h 35m
6:13 PM7:40 AM10h 33m
6:11 PM7:41 AM10h 30m
6:10 PM7:43 AM10h 27m
6:08 PM7:44 AM10h 24m
6:07 PM7:45 AM10h 22m
6:06 PM7:47 AM10h 19m
Download 2026 calendar (CSV)

About these times

Calculation point
43.15357°, -93.20104°
Place reference
GeoNames 4866445

Sunrise and sunset use a solar-center altitude of −0.833°, including a standard allowance for refraction and the sun’s radius. The result is rounded to the nearest minute. Terrain and unusual atmospheric conditions are not modeled.

Sources, validation and limitations