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, 16 May 2025: day of Venus
- Sunrise
- 05:31
- Sunset
- 20:28
- Next sunrise
- 05:29
A day hour lasts 1h 15m; a night hour, 45 min. Local time (America/Toronto).
Day
- 1♀︎ Venus05:31 – 06:45
- 2☿︎ Mercury06:45 – 08:00
- 3☽︎ Moon08:00 – 09:15
- 4♄︎ Saturn09:15 – 10:30
- 5♃︎ Jupiter10:30 – 11:44
- 6♂︎ Mars11:44 – 12:59
- 7☉︎ Sun12:59 – 14:14
- 8♀︎ Venus14:14 – 15:29
- 9☿︎ Mercury15:29 – 16:43
- 10☽︎ Moon16:43 – 17:58
- 11♄︎ Saturn17:58 – 19:13
- 12♃︎ Jupiter19:13 – 20:28
Night
- 1♂︎ Mars20:28 – 21:13
- 2☉︎ Sun21:13 – 21:58
- 3♀︎ Venus21:58 – 22:43
- 4☿︎ Mercury22:43 – 23:28
- 5☽︎ Moon23:28 – 00:13
- 6♄︎ Saturn00:13 – 00:59
- 7♃︎ Jupiter00:59 – 01:44
- 8♂︎ Mars01:44 – 02:29
- 9☉︎ Sun02:29 – 03:14
- 10♀︎ Venus03:14 – 03:59
- 11☿︎ Mercury03:59 – 04:44
- 12☽︎ Moon04:44 – 05:29
Other cities · Canada
Questions
How are the planetary hours calculated in Ottawa?
On Friday, 16 May 2025, the Sun rises at 05:31 and sets at 20:28: the day lasts 14h 57m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 05:29, lasts 9h 02m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Venus, from 05:31 to 06:45: 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.