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, 12 December 2028: day of Mars
- Sunrise
- 05:00
- Sunset
- 18:32
- Next sunrise
- 05:01
A day hour lasts 1h 08m; a night hour, 52 min. Local time (America/Sao_Paulo).
Day
- 1♂︎ Mars05:00 – 06:08
- 2☉︎ Sun06:08 – 07:16
- 3♀︎ Venus07:16 – 08:23
- 4☿︎ Mercury08:23 – 09:31
- 5☽︎ Moon09:31 – 10:39
- 6♄︎ Saturn10:39 – 11:46
- 7♃︎ Jupiter11:46 – 12:54
- 8♂︎ Mars12:54 – 14:01
- 9☉︎ Sun14:01 – 15:09
- 10♀︎ Venus15:09 – 16:17
- 11☿︎ Mercury16:17 – 17:24
- 12☽︎ Moon17:24 – 18:32
Night
- 1♄︎ Saturn18:32 – 19:24
- 2♃︎ Jupiter19:24 – 20:17
- 3♂︎ Mars20:17 – 21:09
- 4☉︎ Sun21:09 – 22:02
- 5♀︎ Venus22:02 – 22:54
- 6☿︎ Mercury22:54 – 23:46
- 7☽︎ Moon23:46 – 00:39
- 8♄︎ Saturn00:39 – 01:31
- 9♃︎ Jupiter01:31 – 02:24
- 10♂︎ Mars02:24 – 03:16
- 11☉︎ Sun03:16 – 04:08
- 12♀︎ Venus04:08 – 05:01
Other cities · Brazil
Questions
How are the planetary hours calculated in Rio de Janeiro?
On Tuesday, 12 December 2028, the Sun rises at 05:00 and sets at 18:32: the day lasts 13h 32m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:01, lasts 10h 29m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Mars, from 05:00 to 06:08: 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.