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 Tuesday, 5 January 2027: day of Mars
- Sunrise
- 05:13
- Sunset
- 18:42
- Next sunrise
- 05:14
A day hour lasts 1h 07m; a night hour, 53 min. Local time (America/Sao_Paulo).
Day
- 1♂︎ Mars05:13 – 06:20
- 2☉︎ Sun06:20 – 07:28
- 3♀︎ Venus07:28 – 08:35
- 4☿︎ Mercury08:35 – 09:43
- 5☽︎ Moon09:43 – 10:50
- 6♄︎ Saturn10:50 – 11:57
- 7♃︎ Jupiter11:57 – 13:05
- 8♂︎ Mars13:05 – 14:12
- 9☉︎ Sun14:12 – 15:20
- 10♀︎ Venus15:20 – 16:27
- 11☿︎ Mercury16:27 – 17:35
- 12☽︎ Moon17:35 – 18:42
Night
- 1♄︎ Saturn18:42 – 19:35
- 2♃︎ Jupiter19:35 – 20:27
- 3♂︎ Mars20:27 – 21:20
- 4☉︎ Sun21:20 – 22:13
- 5♀︎ Venus22:13 – 23:05
- 6☿︎ Mercury23:05 – 23:58
- 7☽︎ Moon23:58 – 00:50
- 8♄︎ Saturn00:50 – 01:43
- 9♃︎ Jupiter01:43 – 02:36
- 10♂︎ Mars02:36 – 03:28
- 11☉︎ Sun03:28 – 04:21
- 12♀︎ Venus04:21 – 05:14
Other cities · Brazil
Questions
How are the planetary hours calculated in Rio de Janeiro?
On Tuesday, 5 January 2027, the Sun rises at 05:13 and sets at 18:42: the day lasts 13h 29m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 05:14, lasts 10h 31m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Mars, from 05:13 to 06:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.