Planetary hours
in Rio de Janeiro.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Sunday, 3 January 2027: day of the Sun
- Sunrise
- 05:12
- Sunset
- 18:42
- Next sunrise
- 05:12
A day hour lasts 1h 08m; a night hour, 53 min. Local time (America/Sao_Paulo).
Day
- 1☉︎ Sun05:12 – 06:19
- 2♀︎ Venus06:19 – 07:27
- 3☿︎ Mercury07:27 – 08:34
- 4☽︎ Moon08:34 – 09:42
- 5♄︎ Saturn09:42 – 10:49
- 6♃︎ Jupiter10:49 – 11:57
- 7♂︎ Mars11:57 – 13:04
- 8☉︎ Sun13:04 – 14:12
- 9♀︎ Venus14:12 – 15:19
- 10☿︎ Mercury15:19 – 16:27
- 11☽︎ Moon16:27 – 17:34
- 12♄︎ Saturn17:34 – 18:42
Night
- 1♃︎ Jupiter18:42 – 19:34
- 2♂︎ Mars19:34 – 20:27
- 3☉︎ Sun20:27 – 21:19
- 4♀︎ Venus21:19 – 22:12
- 5☿︎ Mercury22:12 – 23:04
- 6☽︎ Moon23:04 – 23:57
- 7♄︎ Saturn23:57 – 00:49
- 8♃︎ Jupiter00:49 – 01:42
- 9♂︎ Mars01:42 – 02:35
- 10☉︎ Sun02:35 – 03:27
- 11♀︎ Venus03:27 – 04:20
- 12☿︎ Mercury04:20 – 05:12
Other cities · Brazil
Questions
How are the planetary hours calculated in Rio de Janeiro?
On Sunday, 3 January 2027, the Sun rises at 05:12 and sets at 18:42: the day lasts 13h 30m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:12, lasts 10h 31m: twelve night hours of 53 min.
Which planet rules the first hour that day?
The Sun, from 05:12 to 06:19: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.