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, 22 December 2026: day of Mars
- Sunrise
- 06:22
- Sunset
- 18:41
- Next sunrise
- 06:22
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Africa/Dar_es_Salaam).
Day
- 1♂︎ Mars06:22 – 07:23
- 2☉︎ Sun07:23 – 08:25
- 3♀︎ Venus08:25 – 09:26
- 4☿︎ Mercury09:26 – 10:28
- 5☽︎ Moon10:28 – 11:30
- 6♄︎ Saturn11:30 – 12:31
- 7♃︎ Jupiter12:31 – 13:33
- 8♂︎ Mars13:33 – 14:34
- 9☉︎ Sun14:34 – 15:36
- 10♀︎ Venus15:36 – 16:38
- 11☿︎ Mercury16:38 – 17:39
- 12☽︎ Moon17:39 – 18:41
Night
- 1♄︎ Saturn18:41 – 19:39
- 2♃︎ Jupiter19:39 – 20:38
- 3♂︎ Mars20:38 – 21:36
- 4☉︎ Sun21:36 – 22:35
- 5♀︎ Venus22:35 – 23:33
- 6☿︎ Mercury23:33 – 00:32
- 7☽︎ Moon00:32 – 01:30
- 8♄︎ Saturn01:30 – 02:28
- 9♃︎ Jupiter02:28 – 03:27
- 10♂︎ Mars03:27 – 04:25
- 11☉︎ Sun04:25 – 05:24
- 12♀︎ Venus05:24 – 06:22
Other cities · Tanzania
Questions
How are the planetary hours calculated in Arusha?
On Tuesday, 22 December 2026, the Sun rises at 06:22 and sets at 18:41: the day lasts 12h 19m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 06:22, lasts 11h 41m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mars, from 06:22 to 07:23: 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.