Planetary hours
in Yokohama.
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, 8 May 2026: day of Venus
- Sunrise
- 04:43
- Sunset
- 18:33
- Next sunrise
- 04:42
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Asia/Tokyo).
Day
- 1♀︎ Venus04:43 – 05:52
- 2☿︎ Mercury05:52 – 07:01
- 3☽︎ Moon07:01 – 08:10
- 4♄︎ Saturn08:10 – 09:19
- 5♃︎ Jupiter09:19 – 10:29
- 6♂︎ Mars10:29 – 11:38
- 7☉︎ Sun11:38 – 12:47
- 8♀︎ Venus12:47 – 13:56
- 9☿︎ Mercury13:56 – 15:05
- 10☽︎ Moon15:05 – 16:14
- 11♄︎ Saturn16:14 – 17:23
- 12♃︎ Jupiter17:23 – 18:33
Night
- 1♂︎ Mars18:33 – 19:23
- 2☉︎ Sun19:23 – 20:14
- 3♀︎ Venus20:14 – 21:05
- 4☿︎ Mercury21:05 – 21:56
- 5☽︎ Moon21:56 – 22:46
- 6♄︎ Saturn22:46 – 23:37
- 7♃︎ Jupiter23:37 – 00:28
- 8♂︎ Mars00:28 – 01:19
- 9☉︎ Sun01:19 – 02:10
- 10♀︎ Venus02:10 – 03:00
- 11☿︎ Mercury03:00 – 03:51
- 12☽︎ Moon03:51 – 04:42
Questions
How are the planetary hours calculated in Yokohama?
On Friday, 8 May 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 04:42, lasts 10h 09m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Venus, 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: 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.