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, 20 October 2026: day of Mars
- Sunrise
- 06:12
- Sunset
- 18:23
- Next sunrise
- 06:12
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Africa/Dar_es_Salaam).
Day
- 1♂︎ Mars06:12 – 07:13
- 2☉︎ Sun07:13 – 08:14
- 3♀︎ Venus08:14 – 09:15
- 4☿︎ Mercury09:15 – 10:16
- 5☽︎ Moon10:16 – 11:17
- 6♄︎ Saturn11:17 – 12:18
- 7♃︎ Jupiter12:18 – 13:19
- 8♂︎ Mars13:19 – 14:20
- 9☉︎ Sun14:20 – 15:21
- 10♀︎ Venus15:21 – 16:21
- 11☿︎ Mercury16:21 – 17:22
- 12☽︎ Moon17:22 – 18:23
Night
- 1♄︎ Saturn18:23 – 19:22
- 2♃︎ Jupiter19:22 – 20:21
- 3♂︎ Mars20:21 – 21:20
- 4☉︎ Sun21:20 – 22:19
- 5♀︎ Venus22:19 – 23:18
- 6☿︎ Mercury23:18 – 00:17
- 7☽︎ Moon00:17 – 01:16
- 8♄︎ Saturn01:16 – 02:15
- 9♃︎ Jupiter02:15 – 03:14
- 10♂︎ Mars03:14 – 04:13
- 11☉︎ Sun04:13 – 05:13
- 12♀︎ Venus05:13 – 06:12
Other cities · Tanzania
Questions
How are the planetary hours calculated in Arusha?
On Tuesday, 20 October 2026, the Sun rises at 06:12 and sets at 18:23: the day lasts 12h 12m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 06:12, lasts 11h 48m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Mars, from 06:12 to 07:13: 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.