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 Thursday, 17 September 2026: day of Jupiter
- Sunrise
- 06:25
- Sunset
- 18:30
- Next sunrise
- 06:24
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Africa/Dar_es_Salaam).
Day
- 1♃︎ Jupiter06:25 – 07:25
- 2♂︎ Mars07:25 – 08:25
- 3☉︎ Sun08:25 – 09:26
- 4♀︎ Venus09:26 – 10:26
- 5☿︎ Mercury10:26 – 11:27
- 6☽︎ Moon11:27 – 12:27
- 7♄︎ Saturn12:27 – 13:28
- 8♃︎ Jupiter13:28 – 14:28
- 9♂︎ Mars14:28 – 15:29
- 10☉︎ Sun15:29 – 16:29
- 11♀︎ Venus16:29 – 17:30
- 12☿︎ Mercury17:30 – 18:30
Night
- 1☽︎ Moon18:30 – 19:30
- 2♄︎ Saturn19:30 – 20:29
- 3♃︎ Jupiter20:29 – 21:29
- 4♂︎ Mars21:29 – 22:28
- 5☉︎ Sun22:28 – 23:28
- 6♀︎ Venus23:28 – 00:27
- 7☿︎ Mercury00:27 – 01:27
- 8☽︎ Moon01:27 – 02:26
- 9♄︎ Saturn02:26 – 03:26
- 10♃︎ Jupiter03:26 – 04:25
- 11♂︎ Mars04:25 – 05:25
- 12☉︎ Sun05:25 – 06:24
Other cities · Tanzania
Questions
How are the planetary hours calculated in Arusha?
On Thursday, 17 September 2026, the Sun rises at 06:25 and sets at 18:30: the day lasts 12h 05m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 06:24, lasts 11h 54m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
Jupiter, from 06:25 to 07:25: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.