Planetary hours
in Guarulhos.
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
- 05:30
- Sunset
- 18:12
- Next sunrise
- 05:29
A day hour lasts 1h 03m; a night hour, 56 min. Local time (America/Sao_Paulo).
Day
- 1☉︎ Sun05:30 – 06:34
- 2♀︎ Venus06:34 – 07:37
- 3☿︎ Mercury07:37 – 08:41
- 4☽︎ Moon08:41 – 09:44
- 5♄︎ Saturn09:44 – 10:47
- 6♃︎ Jupiter10:47 – 11:51
- 7♂︎ Mars11:51 – 12:54
- 8☉︎ Sun12:54 – 13:58
- 9♀︎ Venus13:58 – 15:01
- 10☿︎ Mercury15:01 – 16:05
- 11☽︎ Moon16:05 – 17:08
- 12♄︎ Saturn17:08 – 18:12
Night
- 1♃︎ Jupiter18:12 – 19:08
- 2♂︎ Mars19:08 – 20:05
- 3☉︎ Sun20:05 – 21:01
- 4♀︎ Venus21:01 – 21:58
- 5☿︎ Mercury21:58 – 22:54
- 6☽︎ Moon22:54 – 23:50
- 7♄︎ Saturn23:50 – 00:47
- 8♃︎ Jupiter00:47 – 01:43
- 9♂︎ Mars01:43 – 02:40
- 10☉︎ Sun02:40 – 03:36
- 11♀︎ Venus03:36 – 04:33
- 12☿︎ Mercury04:33 – 05:29
Other cities · Brazil
Questions
How are the planetary hours calculated in Guarulhos?
On Sunday, 18 October 2026, the Sun rises at 05:30 and sets at 18:12: the day lasts 12h 42m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:29, lasts 11h 18m: twelve night hours of 56 min.
Which planet rules the first hour that day?
The Sun, from 05:30 to 06:34: 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.