Planetary hours
in Sapporo.
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 Tuesday, 12 August 2025: day of Mars
- Sunrise
- 04:36
- Sunset
- 18:41
- Next sunrise
- 04:37
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Asia/Tokyo).
Day
- 1♂︎ Mars04:36 – 05:47
- 2☉︎ Sun05:47 – 06:57
- 3♀︎ Venus06:57 – 08:08
- 4☿︎ Mercury08:08 – 09:18
- 5☽︎ Moon09:18 – 10:28
- 6♄︎ Saturn10:28 – 11:39
- 7♃︎ Jupiter11:39 – 12:49
- 8♂︎ Mars12:49 – 14:00
- 9☉︎ Sun14:00 – 15:10
- 10♀︎ Venus15:10 – 16:20
- 11☿︎ Mercury16:20 – 17:31
- 12☽︎ Moon17:31 – 18:41
Night
- 1♄︎ Saturn18:41 – 19:31
- 2♃︎ Jupiter19:31 – 20:21
- 3♂︎ Mars20:21 – 21:10
- 4☉︎ Sun21:10 – 22:00
- 5♀︎ Venus22:00 – 22:50
- 6☿︎ Mercury22:50 – 23:39
- 7☽︎ Moon23:39 – 00:29
- 8♄︎ Saturn00:29 – 01:19
- 9♃︎ Jupiter01:19 – 02:08
- 10♂︎ Mars02:08 – 02:58
- 11☉︎ Sun02:58 – 03:48
- 12♀︎ Venus03:48 – 04:37
Questions
How are the planetary hours calculated in Sapporo?
On Tuesday, 12 August 2025, the Sun rises at 04:36 and sets at 18:41: the day lasts 14h 05m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 04:37, lasts 9h 56m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Mars, from 04:36 to 05:47: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.