Sunrise and Sunset times in Rio Branco, Brazil 
Rio Branco
Mato Grosso
Time zone: America/Cuiaba, UTC -4 h.
Latitude: -15.2398, Longitude: -58.1132
| Date | Sunrise | Solar Noon | Sunset | Length of day |
|---|---|---|---|---|
| 2025-Jul-01, Tuesday | 06:19:14 | 11:56:26 | 17:33:38 | 11h 14m 24s |
| 2025-Jul-02, Wednesday | 06:19:19 | 11:56:37 | 17:33:55 | 11h 14m 36s |
| 2025-Jul-03, Thursday | 06:19:24 | 11:56:48 | 17:34:12 | 11h 14m 48s |
| 2025-Jul-04, Friday | 06:19:28 | 11:56:59 | 17:34:29 | 11h 15m 1s |
| 2025-Jul-05, Saturday | 06:19:31 | 11:57:09 | 17:34:47 | 11h 15m 16s |
| 2025-Jul-06, Sunday | 06:19:34 | 11:57:19 | 17:35:05 | 11h 15m 31s |
| 2025-Jul-07, Monday | 06:19:35 | 11:57:29 | 17:35:22 | 11h 15m 47s |
| 2025-Jul-08, Tuesday | 06:19:36 | 11:57:38 | 17:35:40 | 11h 16m 4s |
| 2025-Jul-09, Wednesday | 06:19:35 | 11:57:47 | 17:35:58 | 11h 16m 23s |
| 2025-Jul-10, Thursday | 06:19:34 | 11:57:55 | 17:36:16 | 11h 16m 42s |
| 2025-Jul-11, Friday | 06:19:32 | 11:58:03 | 17:36:34 | 11h 17m 2s |
| 2025-Jul-12, Saturday | 06:19:29 | 11:58:11 | 17:36:52 | 11h 17m 23s |
| 2025-Jul-13, Sunday | 06:19:25 | 11:58:18 | 17:37:10 | 11h 17m 45s |
| 2025-Jul-14, Monday | 06:19:20 | 11:58:24 | 17:37:28 | 11h 18m 8s |
| 2025-Jul-15, Tuesday | 06:19:14 | 11:58:30 | 17:37:46 | 11h 18m 32s |
| 2025-Jul-16, Wednesday | 06:19:08 | 11:58:36 | 17:38:04 | 11h 18m 56s |
| 2025-Jul-17, Thursday | 06:19:00 | 11:58:41 | 17:38:21 | 11h 19m 21s |
| 2025-Jul-18, Friday | 06:18:51 | 11:58:45 | 17:38:39 | 11h 19m 48s |
| 2025-Jul-19, Saturday | 06:18:42 | 11:58:49 | 17:38:56 | 11h 20m 14s |
| 2025-Jul-20, Sunday | 06:18:31 | 11:58:52 | 17:39:13 | 11h 20m 42s |
| 2025-Jul-21, Monday | 06:18:20 | 11:58:55 | 17:39:30 | 11h 21m 10s |
| 2025-Jul-22, Tuesday | 06:18:07 | 11:58:57 | 17:39:47 | 11h 21m 40s |
| 2025-Jul-23, Wednesday | 06:17:54 | 11:58:59 | 17:40:04 | 11h 22m 10s |
| 2025-Jul-24, Thursday | 06:17:40 | 11:59:00 | 17:40:20 | 11h 22m 40s |
| 2025-Jul-25, Friday | 06:17:25 | 11:59:00 | 17:40:36 | 11h 23m 11s |
| 2025-Jul-26, Saturday | 06:17:08 | 11:59:00 | 17:40:52 | 11h 23m 44s |
| 2025-Jul-27, Sunday | 06:16:51 | 11:59:00 | 17:41:08 | 11h 24m 17s |
| 2025-Jul-28, Monday | 06:16:33 | 11:58:58 | 17:41:23 | 11h 24m 50s |
| 2025-Jul-29, Tuesday | 06:16:14 | 11:58:56 | 17:41:38 | 11h 25m 24s |
| 2025-Jul-30, Wednesday | 06:15:54 | 11:58:54 | 17:41:53 | 11h 25m 59s |
| 2025-Jul-31, Thursday | 06:15:33 | 11:58:51 | 17:42:08 | 11h 26m 35s |
Rio Branco on Brazil map:
Cities in the same time zone America/Cuiaba
Cuiaba (Mato Grosso), Varzea Grande (Mato Grosso), Rondonopolis (Mato Grosso), Caceres (Mato Grosso), Barra do Garcas (Mato Grosso), Alta Floresta (Mato Grosso), Barra do Bugres (Mato Grosso), Pontes e Lacerda (Mato Grosso), Colider (Mato Grosso), Aripuana (Mato Grosso), Sinop (Mato Grosso), Vila Bela da Santissima Trindade (Mato Grosso), Araputanga (Mato Grosso), Jauru (Mato Grosso), Jarudore (Mato Grosso), Guiratinga (Mato Grosso), Araguainha (Mato Grosso), Ponte Branca (Mato Grosso), Porto Esperidiao (Mato Grosso), Nova Xavantina (Mato Grosso), Nobres (Mato Grosso), Rosario Oeste (Mato Grosso), Limpo Grande (Mato Grosso), Coxipo da Ponte (Mato Grosso), Santo Antonio do Leverger (Mato Grosso), Cangas (Mato Grosso), Bau (Mato Grosso), Comodoro (Mato Grosso), Tesouro (Mato Grosso), Nova Alvorada (Mato Grosso)
Largest Populated Areas in Brazil
Sao Paulo (São Paulo), Rio de Janeiro (Rio de Janeiro), Belo Horizonte (Minas Gerais), Porto Alegre (Rio Grande do Sul), Brasilia (Distrito Federal), Recife (Pernambuco), Fortaleza (Ceará), Salvador (Bahia), Curitiba (Paraná), Campinas (São Paulo), Belem (Pará), Goiania (Goiás), Manaus (Amazonas), Santos (São Paulo), Vitoria (Espírito Santo), Niteroi (Rio de Janeiro), Vila Velha (Amapá), Vila Velha (Espírito Santo), Maceio (Alagoas), Natal (Rio Grande do Norte), Sao Luis (Maranhão), Florianopolis (Santa Catarina), Joinvile (Santa Catarina), Natal (Amazonas), Joao Pessoa (Paraíba), Olinda (Pernambuco), Teresina (Piauí), Novo Hamburgo (Rio Grande do Sul), Iguacu (Rio de Janeiro), Cuiaba (Mato Grosso)
Daylight Hours FAQ: 10 Most Googled Questions Answered
1. What are daylight hours?
Daylight hours refer to the period between sunrise and sunset. This duration changes throughout the year based on season and geographic location.
2. Why are days shorter in winter and longer in summer?
Earth's 23.5° axial tilt causes uneven sunlight distribution. Your hemisphere receives less direct sunlight in winter (shorter days) and more in summer (longer days).
3. When is the longest day of the year?
Northern Hemisphere: June 20-22 (summer solstice).
Southern Hemisphere: December 21-23.
Near polar circles, the sun doesn't set for 24 hours.
4. When is the shortest day of the year?
Northern Hemisphere: December 21-22 (winter solstice).
Southern Hemisphere: June 20-21.
5. How does latitude affect daylight hours?
The closer to poles, the more extreme variations:
- Equator: ~12-hour days year-round
- Polar regions: Midnight sun/polar nights occur
6. Why do New York and Miami have different day lengths?
Miami's lower latitude means:
- Winter days are longer than NY's
- Summer days are slightly shorter
7. When are day and night equal?
During equinoxes:
- Spring: March 20-21
- Fall: September 22-23
How fast do days lengthen/shorten?
Most rapid change near equinoxes: 2-4 minutes daily.
Slowest change near solstices: <1 minute daily.
9. Where can I check daylight hours for my city?
Reliable tools:
- Timeanddate.com
- SunCalc.org
- Photographer's Ephemeris app
10. Does daylight affect health?
Yes. Reduced winter sunlight may cause:
- Seasonal Affective Disorder (SAD)
- Vitamin D deficiency
Solution: Light therapy lamps & midday walks