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, 16 September 2026: day of Mercury
- Sunrise
- 06:25
- Sunset
- 18:30
- Next sunrise
- 06:25
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Africa/Dar_es_Salaam).
Day
- 1☿︎ Mercury06:25 – 07:25
- 2☽︎ Moon07:25 – 08:26
- 3♄︎ Saturn08:26 – 09:26
- 4♃︎ Jupiter09:26 – 10:27
- 5♂︎ Mars10:27 – 11:27
- 6☉︎ Sun11:27 – 12:28
- 7♀︎ Venus12:28 – 13:28
- 8☿︎ Mercury13:28 – 14:29
- 9☽︎ Moon14:29 – 15:29
- 10♄︎ Saturn15:29 – 16:29
- 11♃︎ Jupiter16:29 – 17:30
- 12♂︎ Mars17:30 – 18:30
Night
- 1☉︎ Sun18:30 – 19:30
- 2♀︎ Venus19:30 – 20:29
- 3☿︎ Mercury20:29 – 21:29
- 4☽︎ Moon21:29 – 22:28
- 5♄︎ Saturn22:28 – 23:28
- 6♃︎ Jupiter23:28 – 00:27
- 7♂︎ Mars00:27 – 01:27
- 8☉︎ Sun01:27 – 02:27
- 9♀︎ Venus02:27 – 03:26
- 10☿︎ Mercury03:26 – 04:26
- 11☽︎ Moon04:26 – 05:25
- 12♄︎ Saturn05:25 – 06:25
Other cities · Tanzania
Questions
How are the planetary hours calculated in Arusha?
On Wednesday, 16 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 06:25, lasts 11h 54m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
Mercury, 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: 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.