Planetary hours
in Viacha.
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, 15 December 2026: day of Mars
- Sunrise
- 05:54
- Sunset
- 19:01
- Next sunrise
- 05:55
A day hour lasts 1h 06m; a night hour, 54 min. Local time (America/La_Paz).
Day
- 1♂︎ Mars05:54 – 07:00
- 2☉︎ Sun07:00 – 08:06
- 3♀︎ Venus08:06 – 09:11
- 4☿︎ Mercury09:11 – 10:17
- 5☽︎ Moon10:17 – 11:22
- 6♄︎ Saturn11:22 – 12:28
- 7♃︎ Jupiter12:28 – 13:34
- 8♂︎ Mars13:34 – 14:39
- 9☉︎ Sun14:39 – 15:45
- 10♀︎ Venus15:45 – 16:50
- 11☿︎ Mercury16:50 – 17:56
- 12☽︎ Moon17:56 – 19:01
Night
- 1♄︎ Saturn19:01 – 19:56
- 2♃︎ Jupiter19:56 – 20:50
- 3♂︎ Mars20:50 – 21:45
- 4☉︎ Sun21:45 – 22:39
- 5♀︎ Venus22:39 – 23:34
- 6☿︎ Mercury23:34 – 00:28
- 7☽︎ Moon00:28 – 01:23
- 8♄︎ Saturn01:23 – 02:17
- 9♃︎ Jupiter02:17 – 03:11
- 10♂︎ Mars03:11 – 04:06
- 11☉︎ Sun04:06 – 05:00
- 12♀︎ Venus05:00 – 05:55
Other cities · Bolivia
Questions
How are the planetary hours calculated in Viacha?
On Tuesday, 15 December 2026, the Sun rises at 05:54 and sets at 19:01: the day lasts 13h 07m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:55, lasts 10h 53m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Mars, from 05:54 to 07:00: 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.