Sunrise and Sunset times in Santo Antonio, Brazil 
Santo Antonio
Rondônia
Time zone: America/Porto_Velho, UTC -4 h.
Latitude: -8.8, Longitude: -63.9333
| Date | Sunrise | Solar Noon | Sunset | Length of day |
|---|---|---|---|---|
| 2025-Jul-01, Tuesday | 06:31:06 | 12:19:43 | 18:08:20 | 11h 37m 14s |
| 2025-Jul-02, Wednesday | 06:31:14 | 12:19:54 | 18:08:34 | 11h 37m 20s |
| 2025-Jul-03, Thursday | 06:31:21 | 12:20:05 | 18:08:49 | 11h 37m 28s |
| 2025-Jul-04, Friday | 06:31:28 | 12:20:16 | 18:09:03 | 11h 37m 35s |
| 2025-Jul-05, Saturday | 06:31:35 | 12:20:26 | 18:09:17 | 11h 37m 42s |
| 2025-Jul-06, Sunday | 06:31:40 | 12:20:36 | 18:09:32 | 11h 37m 52s |
| 2025-Jul-07, Monday | 06:31:45 | 12:20:46 | 18:09:46 | 11h 38m 1s |
| 2025-Jul-08, Tuesday | 06:31:50 | 12:20:55 | 18:10:00 | 11h 38m 10s |
| 2025-Jul-09, Wednesday | 06:31:54 | 12:21:04 | 18:10:14 | 11h 38m 20s |
| 2025-Jul-10, Thursday | 06:31:57 | 12:21:12 | 18:10:28 | 11h 38m 31s |
| 2025-Jul-11, Friday | 06:31:59 | 12:21:20 | 18:10:41 | 11h 38m 42s |
| 2025-Jul-12, Saturday | 06:32:00 | 12:21:27 | 18:10:54 | 11h 38m 54s |
| 2025-Jul-13, Sunday | 06:32:01 | 12:21:34 | 18:11:08 | 11h 39m 7s |
| 2025-Jul-14, Monday | 06:32:02 | 12:21:41 | 18:11:20 | 11h 39m 18s |
| 2025-Jul-15, Tuesday | 06:32:01 | 12:21:47 | 18:11:33 | 11h 39m 32s |
| 2025-Jul-16, Wednesday | 06:32:00 | 12:21:53 | 18:11:45 | 11h 39m 45s |
| 2025-Jul-17, Thursday | 06:31:58 | 12:21:57 | 18:11:57 | 11h 39m 59s |
| 2025-Jul-18, Friday | 06:31:55 | 12:22:02 | 18:12:09 | 11h 40m 14s |
| 2025-Jul-19, Saturday | 06:31:51 | 12:22:06 | 18:12:21 | 11h 40m 30s |
| 2025-Jul-20, Sunday | 06:31:47 | 12:22:09 | 18:12:32 | 11h 40m 45s |
| 2025-Jul-21, Monday | 06:31:42 | 12:22:12 | 18:12:42 | 11h 41m 0s |
| 2025-Jul-22, Tuesday | 06:31:36 | 12:22:14 | 18:12:53 | 11h 41m 17s |
| 2025-Jul-23, Wednesday | 06:31:29 | 12:22:16 | 18:13:03 | 11h 41m 34s |
| 2025-Jul-24, Thursday | 06:31:21 | 12:22:17 | 18:13:12 | 11h 41m 51s |
| 2025-Jul-25, Friday | 06:31:13 | 12:22:17 | 18:13:22 | 11h 42m 9s |
| 2025-Jul-26, Saturday | 06:31:04 | 12:22:17 | 18:13:30 | 11h 42m 26s |
| 2025-Jul-27, Sunday | 06:30:54 | 12:22:16 | 18:13:39 | 11h 42m 45s |
| 2025-Jul-28, Monday | 06:30:43 | 12:22:15 | 18:13:47 | 11h 43m 4s |
| 2025-Jul-29, Tuesday | 06:30:32 | 12:22:13 | 18:13:54 | 11h 43m 22s |
| 2025-Jul-30, Wednesday | 06:30:19 | 12:22:10 | 18:14:02 | 11h 43m 43s |
| 2025-Jul-31, Thursday | 06:30:06 | 12:22:07 | 18:14:08 | 11h 44m 2s |
Santo Antonio on Brazil map:
Cities in the same time zone America/Porto_Velho
Porto Velho (Rondônia), Guajara-Mirim (Rondônia), Ji-Parana (Rondônia), Vilhena (Rondônia), Ariquemes (Rondônia), Pimenta Bueno (Rondônia), Rolim de Moura (Rondônia), Sao Miguel do Guapore (Rondônia), Santa Luzia D'Oeste (Rondônia), Alvorada D'Oeste (Rondônia), Nova Brasilandia d'Oeste (Rondônia), Novo Horizonte (Rondônia), Mirante da Serra (Rondônia), Uropa (Rondônia), Costa Marques (Rondônia), Cacoal (Rondônia), Espigao D'Oeste (Rondônia), Tabajara (Rondônia), Posto Fiscal Rolim de Moura (Rondônia), Cujubim (Rondônia), Riozinho (Rondônia), Santo Antonio do Rio Madeira (Rondônia), Seringueiras (Rondônia), Alta Floresta D'Oeste (Rondônia), Vale do Paraiso (Rondônia), Teixeiropolis (Rondônia), Rondominas (Rondônia), Nova Uniao (Rondônia), Nova Brasilia (Rondônia), Serraria (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