Planetary hours
in Belfast.
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 Wednesday, 13 January 2027: day of Mercury
- Sunrise
- 08:39
- Sunset
- 16:25
- Next sunrise
- 08:38
A day hour lasts 39 min; a night hour, 1h 21m. Local time (Europe/London).
Day
- 1☿︎ Mercury08:39 – 09:18
- 2☽︎ Moon09:18 – 09:57
- 3♄︎ Saturn09:57 – 10:35
- 4♃︎ Jupiter10:35 – 11:14
- 5♂︎ Mars11:14 – 11:53
- 6☉︎ Sun11:53 – 12:32
- 7♀︎ Venus12:32 – 13:11
- 8☿︎ Mercury13:11 – 13:50
- 9☽︎ Moon13:50 – 14:29
- 10♄︎ Saturn14:29 – 15:07
- 11♃︎ Jupiter15:07 – 15:46
- 12♂︎ Mars15:46 – 16:25
Night
- 1☉︎ Sun16:25 – 17:46
- 2♀︎ Venus17:46 – 19:07
- 3☿︎ Mercury19:07 – 20:28
- 4☽︎ Moon20:28 – 21:49
- 5♄︎ Saturn21:49 – 23:10
- 6♃︎ Jupiter23:10 – 00:32
- 7♂︎ Mars00:32 – 01:53
- 8☉︎ Sun01:53 – 03:14
- 9♀︎ Venus03:14 – 04:35
- 10☿︎ Mercury04:35 – 05:56
- 11☽︎ Moon05:56 – 07:17
- 12♄︎ Saturn07:17 – 08:38
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Wednesday, 13 January 2027, the Sun rises at 08:39 and sets at 16:25: the day lasts 7h 46m, that is twelve day hours of 39 min. The night, until the next sunrise at 08:38, lasts 16h 13m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
Mercury, from 08:39 to 09:18: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.