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, 18 August 2026: day of Mars
- Sunrise
- 04:43
- Sunset
- 18:33
- Next sunrise
- 04:44
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Asia/Tokyo).
Day
- 1♂︎ Mars04:43 – 05:52
- 2☉︎ Sun05:52 – 07:01
- 3♀︎ Venus07:01 – 08:10
- 4☿︎ Mercury08:10 – 09:19
- 5☽︎ Moon09:19 – 10:28
- 6♄︎ Saturn10:28 – 11:38
- 7♃︎ Jupiter11:38 – 12:47
- 8♂︎ Mars12:47 – 13:56
- 9☉︎ Sun13:56 – 15:05
- 10♀︎ Venus15:05 – 16:14
- 11☿︎ Mercury16:14 – 17:24
- 12☽︎ Moon17:24 – 18:33
Night
- 1♄︎ Saturn18:33 – 19:24
- 2♃︎ Jupiter19:24 – 20:15
- 3♂︎ Mars20:15 – 21:05
- 4☉︎ Sun21:05 – 21:56
- 5♀︎ Venus21:56 – 22:47
- 6☿︎ Mercury22:47 – 23:38
- 7☽︎ Moon23:38 – 00:29
- 8♄︎ Saturn00:29 – 01:20
- 9♃︎ Jupiter01:20 – 02:11
- 10♂︎ Mars02:11 – 03:02
- 11☉︎ Sun03:02 – 03:53
- 12♀︎ Venus03:53 – 04:44
Questions
How are the planetary hours calculated in Sapporo?
On Tuesday, 18 August 2026, the Sun rises at 04:43 and sets at 18:33: the day lasts 13h 50m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 04:44, lasts 10h 11m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Mars, from 04:43 to 05:52: 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.