Planetary hours
in Brasília.
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 Monday, 21 December 2026: day of the Moon
- Sunrise
- 05:37
- Sunset
- 18:41
- Next sunrise
- 05:38
A day hour lasts 1h 05m; a night hour, 55 min. Local time (America/Sao_Paulo).
Day
- 1☽︎ Moon05:37 – 06:43
- 2♄︎ Saturn06:43 – 07:48
- 3♃︎ Jupiter07:48 – 08:53
- 4♂︎ Mars08:53 – 09:59
- 5☉︎ Sun09:59 – 11:04
- 6♀︎ Venus11:04 – 12:09
- 7☿︎ Mercury12:09 – 13:15
- 8☽︎ Moon13:15 – 14:20
- 9♄︎ Saturn14:20 – 15:25
- 10♃︎ Jupiter15:25 – 16:31
- 11♂︎ Mars16:31 – 17:36
- 12☉︎ Sun17:36 – 18:41
Night
- 1♀︎ Venus18:41 – 19:36
- 2☿︎ Mercury19:36 – 20:31
- 3☽︎ Moon20:31 – 21:26
- 4♄︎ Saturn21:26 – 22:20
- 5♃︎ Jupiter22:20 – 23:15
- 6♂︎ Mars23:15 – 00:10
- 7☉︎ Sun00:10 – 01:04
- 8♀︎ Venus01:04 – 01:59
- 9☿︎ Mercury01:59 – 02:54
- 10☽︎ Moon02:54 – 03:48
- 11♄︎ Saturn03:48 – 04:43
- 12♃︎ Jupiter04:43 – 05:38
Other cities · Brazil
Questions
How are the planetary hours calculated in Brasília?
On Monday, 21 December 2026, the Sun rises at 05:37 and sets at 18:41: the day lasts 13h 04m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 05:38, lasts 10h 56m: twelve night hours of 55 min.
Which planet rules the first hour that day?
The Moon, from 05:37 to 06:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.