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 Tuesday, 13 May 2025: day of Mars
- Sunrise
- 05:21
- Sunset
- 21:20
- Next sunrise
- 05:19
A day hour lasts 1h 20m; a night hour, 40 min. Local time (Europe/London).
Day
- 1♂︎ Mars05:21 – 06:41
- 2☉︎ Sun06:41 – 08:01
- 3♀︎ Venus08:01 – 09:20
- 4☿︎ Mercury09:20 – 10:40
- 5☽︎ Moon10:40 – 12:00
- 6♄︎ Saturn12:00 – 13:20
- 7♃︎ Jupiter13:20 – 14:40
- 8♂︎ Mars14:40 – 16:00
- 9☉︎ Sun16:00 – 17:20
- 10♀︎ Venus17:20 – 18:40
- 11☿︎ Mercury18:40 – 20:00
- 12☽︎ Moon20:00 – 21:20
Night
- 1♄︎ Saturn21:20 – 22:00
- 2♃︎ Jupiter22:00 – 22:39
- 3♂︎ Mars22:39 – 23:19
- 4☉︎ Sun23:19 – 23:59
- 5♀︎ Venus23:59 – 00:39
- 6☿︎ Mercury00:39 – 01:19
- 7☽︎ Moon01:19 – 01:59
- 8♄︎ Saturn01:59 – 02:39
- 9♃︎ Jupiter02:39 – 03:19
- 10♂︎ Mars03:19 – 03:59
- 11☉︎ Sun03:59 – 04:39
- 12♀︎ Venus04:39 – 05:19
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Tuesday, 13 May 2025, the Sun rises at 05:21 and sets at 21:20: the day lasts 15h 59m, that is twelve day hours of 1h 20m. The night, until the next sunrise at 05:19, lasts 7h 59m: twelve night hours of 40 min.
Which planet rules the first hour that day?
Mars, from 05:21 to 06:41: 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.