What time does it get dark in Chattanooga, TN?
In Chattanooga, sunset ranges from about 5:30 PM around December 5 to about 9:00 PM around June 29. The shortest day (December 22) has 9h 48m of daylight and the longest (June 21) has 14h 31m. When daylight saving time ends on Sunday, November 1, 2026, sunset jumps from about 6:49 PM to 5:48 PM overnight.
Working out today's sunset…
Sunset and last light in Chattanooga, month by month
Times for the 15th of each month in 2026, local time. "Start by" is the latest start for a 30 or 60 minute run, ride or walk that finishes by sunset. Last light is when civil twilight ends and it becomes too dark to see without a light.
| Month | Sunrise | Sunset | Last light | Daylight | 30-min start by | 60-min start by |
|---|---|---|---|---|---|---|
| January | 7:50 AM | 5:53 PM | 6:20 PM | 10h 03m | 5:23 PM | 4:53 PM |
| February | 7:28 AM | 6:24 PM | 6:50 PM | 10h 56m | 5:54 PM | 5:24 PM |
| March | 7:53 AM | 7:49 PM | 8:14 PM | 11h 56m | 7:19 PM | 6:49 PM |
| April | 7:10 AM | 8:14 PM | 8:40 PM | 13h 04m | 7:44 PM | 7:14 PM |
| May | 6:38 AM | 8:38 PM | 9:07 PM | 14h 00m | 8:08 PM | 7:38 PM |
| June | 6:28 AM | 8:58 PM | 9:27 PM | 14h 30m | 8:28 PM | 7:58 PM |
| July | 6:39 AM | 8:57 PM | 9:26 PM | 14h 18m | 8:27 PM | 7:57 PM |
| August | 7:02 AM | 8:31 PM | 8:58 PM | 13h 29m | 8:01 PM | 7:31 PM |
| September | 7:25 AM | 7:50 PM | 8:15 PM | 12h 25m | 7:20 PM | 6:50 PM |
| October | 7:48 AM | 7:08 PM | 7:33 PM | 11h 20m | 6:38 PM | 6:08 PM |
| November | 7:17 AM | 5:37 PM | 6:04 PM | 10h 20m | 5:07 PM | 4:37 PM |
| December | 7:43 AM | 5:32 PM | 6:00 PM | 9h 49m | 5:02 PM | 4:32 PM |
Heading out near dark in Chattanooga
From late fall through winter it is dark in Chattanooga before 6 p.m., so after-work runs and walks happen in the dark for months. If you head out close to sunset, be seen and be findable: wear a light and something reflective on the parts of you that move, pick a route with streetlights and other people, and send someone a live location link with a return time before you go. Our guide to running in the dark after the clocks change covers the rest.
Questions people ask
What time does it get dark in Chattanooga in winter?
In mid-December the sun sets around 5:32 PM in Chattanooga and last light (the end of civil twilight) is around 6:00 PM. The earliest sunset of 2026 is about 5:30 PM, around December 5.
When is the latest sunset in Chattanooga?
The latest sunset of 2026 in Chattanooga is about 9:00 PM, around June 29. In mid-June, usable light lasts until roughly 9:27 PM.
How much earlier does it get dark in Chattanooga after daylight saving time ends?
Daylight saving time ends on Sunday, November 1, 2026. Sunset in Chattanooga moves from about 6:49 PM on October 31 to about 5:48 PM on November 1, so an after-work run that finished in daylight the week before can finish in the dark.
What time should I start a run in Chattanooga to finish before dark?
Subtract your run time from sunset. A 60-minute run in Chattanooga should start by about 4:32 PM in mid-December and by about 7:58 PM in mid-June. The table on this page lists the latest start for 30 and 60 minute runs in every month, and the calculator at the top gives today's times.
Keep reading
Calculated from Chattanooga's coordinates (35.05, -85.31) with the standard solar position formulas used by NOAA. Times can differ by a minute or two from other sources, and hills or buildings bring darkness sooner.