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 Wednesday, 9 December 2026: day of Mercury
- Sunrise
- 06:16
- Sunset
- 18:34
- Next sunrise
- 06:16
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Africa/Dar_es_Salaam).
Day
- 1☿︎ Mercury06:16 – 07:17
- 2☽︎ Moon07:17 – 08:19
- 3♄︎ Saturn08:19 – 09:20
- 4♃︎ Jupiter09:20 – 10:22
- 5♂︎ Mars10:22 – 11:23
- 6☉︎ Sun11:23 – 12:25
- 7♀︎ Venus12:25 – 13:27
- 8☿︎ Mercury13:27 – 14:28
- 9☽︎ Moon14:28 – 15:30
- 10♄︎ Saturn15:30 – 16:31
- 11♃︎ Jupiter16:31 – 17:33
- 12♂︎ Mars17:33 – 18:34
Night
- 1☉︎ Sun18:34 – 19:33
- 2♀︎ Venus19:33 – 20:31
- 3☿︎ Mercury20:31 – 21:30
- 4☽︎ Moon21:30 – 22:28
- 5♄︎ Saturn22:28 – 23:27
- 6♃︎ Jupiter23:27 – 00:25
- 7♂︎ Mars00:25 – 01:24
- 8☉︎ Sun01:24 – 02:22
- 9♀︎ Venus02:22 – 03:21
- 10☿︎ Mercury03:21 – 04:19
- 11☽︎ Moon04:19 – 05:18
- 12♄︎ Saturn05:18 – 06:16
Other cities · Tanzania
Questions
How are the planetary hours calculated in Arusha?
On Wednesday, 9 December 2026, the Sun rises at 06:16 and sets at 18:34: the day lasts 12h 19m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 06:16, lasts 11h 42m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mercury, from 06:16 to 07:17: 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.