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, 13 October 2026: day of Mars
- Sunrise
- 06:14
- Sunset
- 18:24
- Next sunrise
- 06:14
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Africa/Dar_es_Salaam).
Day
- 1♂︎ Mars06:14 – 07:15
- 2☉︎ Sun07:15 – 08:16
- 3♀︎ Venus08:16 – 09:16
- 4☿︎ Mercury09:16 – 10:17
- 5☽︎ Moon10:17 – 11:18
- 6♄︎ Saturn11:18 – 12:19
- 7♃︎ Jupiter12:19 – 13:20
- 8♂︎ Mars13:20 – 14:21
- 9☉︎ Sun14:21 – 15:22
- 10♀︎ Venus15:22 – 16:23
- 11☿︎ Mercury16:23 – 17:23
- 12☽︎ Moon17:23 – 18:24
Night
- 1♄︎ Saturn18:24 – 19:23
- 2♃︎ Jupiter19:23 – 20:22
- 3♂︎ Mars20:22 – 21:22
- 4☉︎ Sun21:22 – 22:21
- 5♀︎ Venus22:21 – 23:20
- 6☿︎ Mercury23:20 – 00:19
- 7☽︎ Moon00:19 – 01:18
- 8♄︎ Saturn01:18 – 02:17
- 9♃︎ Jupiter02:17 – 03:16
- 10♂︎ Mars03:16 – 04:15
- 11☉︎ Sun04:15 – 05:14
- 12♀︎ Venus05:14 – 06:14
Other cities · Tanzania
Questions
How are the planetary hours calculated in Arusha?
On Tuesday, 13 October 2026, the Sun rises at 06:14 and sets at 18:24: the day lasts 12h 10m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 06:14, lasts 11h 49m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Mars, from 06:14 to 07:15: 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.