Planetary hours
in Ottawa.
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 Thursday, 11 December 2025: day of Jupiter
- Sunrise
- 07:32
- Sunset
- 16:19
- Next sunrise
- 07:33
A day hour lasts 44 min; a night hour, 1h 16m. Local time (America/Toronto).
Day
- 1♃︎ Jupiter07:32 – 08:16
- 2♂︎ Mars08:16 – 09:00
- 3☉︎ Sun09:00 – 09:44
- 4♀︎ Venus09:44 – 10:28
- 5☿︎ Mercury10:28 – 11:12
- 6☽︎ Moon11:12 – 11:56
- 7♄︎ Saturn11:56 – 12:40
- 8♃︎ Jupiter12:40 – 13:23
- 9♂︎ Mars13:23 – 14:07
- 10☉︎ Sun14:07 – 14:51
- 11♀︎ Venus14:51 – 15:35
- 12☿︎ Mercury15:35 – 16:19
Night
- 1☽︎ Moon16:19 – 17:35
- 2♄︎ Saturn17:35 – 18:51
- 3♃︎ Jupiter18:51 – 20:08
- 4♂︎ Mars20:08 – 21:24
- 5☉︎ Sun21:24 – 22:40
- 6♀︎ Venus22:40 – 23:56
- 7☿︎ Mercury23:56 – 01:12
- 8☽︎ Moon01:12 – 02:28
- 9♄︎ Saturn02:28 – 03:45
- 10♃︎ Jupiter03:45 – 05:01
- 11♂︎ Mars05:01 – 06:17
- 12☉︎ Sun06:17 – 07:33
Other cities · Canada
Questions
How are the planetary hours calculated in Ottawa?
On Thursday, 11 December 2025, the Sun rises at 07:32 and sets at 16:19: the day lasts 8h 47m, that is twelve day hours of 44 min. The night, until the next sunrise at 07:33, lasts 15h 14m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
Jupiter, from 07:32 to 08:16: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.