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 Wednesday, 13 January 2027: day of Mercury
- Sunrise
- 05:18
- Sunset
- 18:43
- Next sunrise
- 05:19
A day hour lasts 1h 07m; a night hour, 53 min. Local time (America/Sao_Paulo).
Day
- 1☿︎ Mercury05:18 – 06:26
- 2☽︎ Moon06:26 – 07:33
- 3♄︎ Saturn07:33 – 08:40
- 4♃︎ Jupiter08:40 – 09:47
- 5♂︎ Mars09:47 – 10:54
- 6☉︎ Sun10:54 – 12:01
- 7♀︎ Venus12:01 – 13:08
- 8☿︎ Mercury13:08 – 14:15
- 9☽︎ Moon14:15 – 15:22
- 10♄︎ Saturn15:22 – 16:29
- 11♃︎ Jupiter16:29 – 17:36
- 12♂︎ Mars17:36 – 18:43
Night
- 1☉︎ Sun18:43 – 19:36
- 2♀︎ Venus19:36 – 20:29
- 3☿︎ Mercury20:29 – 21:22
- 4☽︎ Moon21:22 – 22:15
- 5♄︎ Saturn22:15 – 23:08
- 6♃︎ Jupiter23:08 – 00:01
- 7♂︎ Mars00:01 – 00:54
- 8☉︎ Sun00:54 – 01:47
- 9♀︎ Venus01:47 – 02:40
- 10☿︎ Mercury02:40 – 03:33
- 11☽︎ Moon03:33 – 04:26
- 12♄︎ Saturn04:26 – 05:19
Other cities · Brazil
Questions
How are the planetary hours calculated in Rio de Janeiro?
On Wednesday, 13 January 2027, the Sun rises at 05:18 and sets at 18:43: the day lasts 13h 25m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 05:19, lasts 10h 36m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Mercury, from 05:18 to 06:26: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.