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 Friday, 19 September 2025: day of Venus
- Sunrise
- 06:46
- Sunset
- 19:05
- Next sunrise
- 06:47
A day hour lasts 1h 02m; a night hour, 59 min. Local time (America/Toronto).
Day
- 1♀︎ Venus06:46 – 07:48
- 2☿︎ Mercury07:48 – 08:49
- 3☽︎ Moon08:49 – 09:51
- 4♄︎ Saturn09:51 – 10:52
- 5♃︎ Jupiter10:52 – 11:54
- 6♂︎ Mars11:54 – 12:56
- 7☉︎ Sun12:56 – 13:57
- 8♀︎ Venus13:57 – 14:59
- 9☿︎ Mercury14:59 – 16:00
- 10☽︎ Moon16:00 – 17:02
- 11♄︎ Saturn17:02 – 18:03
- 12♃︎ Jupiter18:03 – 19:05
Night
- 1♂︎ Mars19:05 – 20:04
- 2☉︎ Sun20:04 – 21:02
- 3♀︎ Venus21:02 – 22:01
- 4☿︎ Mercury22:01 – 22:59
- 5☽︎ Moon22:59 – 23:58
- 6♄︎ Saturn23:58 – 00:56
- 7♃︎ Jupiter00:56 – 01:55
- 8♂︎ Mars01:55 – 02:53
- 9☉︎ Sun02:53 – 03:52
- 10♀︎ Venus03:52 – 04:50
- 11☿︎ Mercury04:50 – 05:49
- 12☽︎ Moon05:49 – 06:47
Other cities · Canada
Questions
How are the planetary hours calculated in Ottawa?
On Friday, 19 September 2025, the Sun rises at 06:46 and sets at 19:05: the day lasts 12h 19m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 06:47, lasts 11h 42m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Venus, from 06:46 to 07:48: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.