Planetary hours
in Arusha.
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, 11 August 2026: day of Mars
- Sunrise
- 06:38
- Sunset
- 18:38
- Next sunrise
- 06:38
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Africa/Dar_es_Salaam).
Day
- 1♂︎ Mars06:38 – 07:38
- 2☉︎ Sun07:38 – 08:38
- 3♀︎ Venus08:38 – 09:38
- 4☿︎ Mercury09:38 – 10:38
- 5☽︎ Moon10:38 – 11:38
- 6♄︎ Saturn11:38 – 12:38
- 7♃︎ Jupiter12:38 – 13:38
- 8♂︎ Mars13:38 – 14:38
- 9☉︎ Sun14:38 – 15:38
- 10♀︎ Venus15:38 – 16:38
- 11☿︎ Mercury16:38 – 17:38
- 12☽︎ Moon17:38 – 18:38
Night
- 1♄︎ Saturn18:38 – 19:38
- 2♃︎ Jupiter19:38 – 20:38
- 3♂︎ Mars20:38 – 21:38
- 4☉︎ Sun21:38 – 22:38
- 5♀︎ Venus22:38 – 23:38
- 6☿︎ Mercury23:38 – 00:38
- 7☽︎ Moon00:38 – 01:38
- 8♄︎ Saturn01:38 – 02:38
- 9♃︎ Jupiter02:38 – 03:38
- 10♂︎ Mars03:38 – 04:38
- 11☉︎ Sun04:38 – 05:38
- 12♀︎ Venus05:38 – 06:38
Other cities · Tanzania
Questions
How are the planetary hours calculated in Arusha?
On Tuesday, 11 August 2026, the Sun rises at 06:38 and sets at 18:38: the day lasts 12h 00m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 06:38, lasts 12h 00m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
Mars, from 06:38 to 07:38: 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.