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 Sunday, 17 May 2026: day of the Sun
- Sunrise
- 04:09
- Sunset
- 18:52
- Next sunrise
- 04:08
A day hour lasts 1h 14m; a night hour, 46 min. Local time (Asia/Tokyo).
Day
- 1☉︎ Sun04:09 – 05:23
- 2♀︎ Venus05:23 – 06:36
- 3☿︎ Mercury06:36 – 07:50
- 4☽︎ Moon07:50 – 09:04
- 5♄︎ Saturn09:04 – 10:17
- 6♃︎ Jupiter10:17 – 11:31
- 7♂︎ Mars11:31 – 12:44
- 8☉︎ Sun12:44 – 13:58
- 9♀︎ Venus13:58 – 15:12
- 10☿︎ Mercury15:12 – 16:25
- 11☽︎ Moon16:25 – 17:39
- 12♄︎ Saturn17:39 – 18:52
Night
- 1♃︎ Jupiter18:52 – 19:39
- 2♂︎ Mars19:39 – 20:25
- 3☉︎ Sun20:25 – 21:11
- 4♀︎ Venus21:11 – 21:58
- 5☿︎ Mercury21:58 – 22:44
- 6☽︎ Moon22:44 – 23:30
- 7♄︎ Saturn23:30 – 00:17
- 8♃︎ Jupiter00:17 – 01:03
- 9♂︎ Mars01:03 – 01:49
- 10☉︎ Sun01:49 – 02:36
- 11♀︎ Venus02:36 – 03:22
- 12☿︎ Mercury03:22 – 04:08
Questions
How are the planetary hours calculated in Sapporo?
On Sunday, 17 May 2026, the Sun rises at 04:09 and sets at 18:52: the day lasts 14h 43m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 04:08, lasts 9h 16m: twelve night hours of 46 min.
Which planet rules the first hour that day?
The Sun, from 04:09 to 05:23: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.