Planetary hours
in Potosí.
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 Sunday, 18 October 2026: day of the Sun
- Sunrise
- 05:50
- Sunset
- 18:25
- Next sunrise
- 05:49
A day hour lasts 1h 03m; a night hour, 57 min. Local time (America/La_Paz).
Day
- 1☉︎ Sun05:50 – 06:53
- 2♀︎ Venus06:53 – 07:56
- 3☿︎ Mercury07:56 – 08:59
- 4☽︎ Moon08:59 – 10:02
- 5♄︎ Saturn10:02 – 11:05
- 6♃︎ Jupiter11:05 – 12:08
- 7♂︎ Mars12:08 – 13:11
- 8☉︎ Sun13:11 – 14:14
- 9♀︎ Venus14:14 – 15:17
- 10☿︎ Mercury15:17 – 16:19
- 11☽︎ Moon16:19 – 17:22
- 12♄︎ Saturn17:22 – 18:25
Night
- 1♃︎ Jupiter18:25 – 19:22
- 2♂︎ Mars19:22 – 20:19
- 3☉︎ Sun20:19 – 21:16
- 4♀︎ Venus21:16 – 22:13
- 5☿︎ Mercury22:13 – 23:10
- 6☽︎ Moon23:10 – 00:07
- 7♄︎ Saturn00:07 – 01:04
- 8♃︎ Jupiter01:04 – 02:01
- 9♂︎ Mars02:01 – 02:58
- 10☉︎ Sun02:58 – 03:55
- 11♀︎ Venus03:55 – 04:52
- 12☿︎ Mercury04:52 – 05:49
Other cities · Bolivia
Questions
How are the planetary hours calculated in Potosí?
On Sunday, 18 October 2026, the Sun rises at 05:50 and sets at 18:25: the day lasts 12h 35m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:49, lasts 11h 24m: twelve night hours of 57 min.
Which planet rules the first hour that day?
The Sun, from 05:50 to 06:53: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.