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, 18 November 2026: day of Mercury
- Sunrise
- 05:00
- Sunset
- 18:16
- Next sunrise
- 04:59
A day hour lasts 1h 06m; a night hour, 54 min. Local time (America/Sao_Paulo).
Day
- 1☿︎ Mercury05:00 – 06:06
- 2☽︎ Moon06:06 – 07:12
- 3♄︎ Saturn07:12 – 08:19
- 4♃︎ Jupiter08:19 – 09:25
- 5♂︎ Mars09:25 – 10:31
- 6☉︎ Sun10:31 – 11:38
- 7♀︎ Venus11:38 – 12:44
- 8☿︎ Mercury12:44 – 13:50
- 9☽︎ Moon13:50 – 14:57
- 10♄︎ Saturn14:57 – 16:03
- 11♃︎ Jupiter16:03 – 17:09
- 12♂︎ Mars17:09 – 18:16
Night
- 1☉︎ Sun18:16 – 19:09
- 2♀︎ Venus19:09 – 20:03
- 3☿︎ Mercury20:03 – 20:56
- 4☽︎ Moon20:56 – 21:50
- 5♄︎ Saturn21:50 – 22:44
- 6♃︎ Jupiter22:44 – 23:37
- 7♂︎ Mars23:37 – 00:31
- 8☉︎ Sun00:31 – 01:25
- 9♀︎ Venus01:25 – 02:18
- 10☿︎ Mercury02:18 – 03:12
- 11☽︎ Moon03:12 – 04:06
- 12♄︎ Saturn04:06 – 04:59
Other cities · Brazil
Questions
How are the planetary hours calculated in Rio de Janeiro?
On Wednesday, 18 November 2026, the Sun rises at 05:00 and sets at 18:16: the day lasts 13h 16m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 04:59, lasts 10h 44m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Mercury, from 05:00 to 06:06: 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.