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, 4 August 2026: day of Mars
- Sunrise
- 05:39
- Sunset
- 21:18
- Next sunrise
- 05:41
A day hour lasts 1h 18m; a night hour, 42 min. Local time (Europe/London).
Day
- 1♂︎ Mars05:39 – 06:57
- 2☉︎ Sun06:57 – 08:16
- 3♀︎ Venus08:16 – 09:34
- 4☿︎ Mercury09:34 – 10:52
- 5☽︎ Moon10:52 – 12:10
- 6♄︎ Saturn12:10 – 13:29
- 7♃︎ Jupiter13:29 – 14:47
- 8♂︎ Mars14:47 – 16:05
- 9☉︎ Sun16:05 – 17:24
- 10♀︎ Venus17:24 – 18:42
- 11☿︎ Mercury18:42 – 20:00
- 12☽︎ Moon20:00 – 21:18
Night
- 1♄︎ Saturn21:18 – 22:00
- 2♃︎ Jupiter22:00 – 22:42
- 3♂︎ Mars22:42 – 23:24
- 4☉︎ Sun23:24 – 00:06
- 5♀︎ Venus00:06 – 00:48
- 6☿︎ Mercury00:48 – 01:30
- 7☽︎ Moon01:30 – 02:11
- 8♄︎ Saturn02:11 – 02:53
- 9♃︎ Jupiter02:53 – 03:35
- 10♂︎ Mars03:35 – 04:17
- 11☉︎ Sun04:17 – 04:59
- 12♀︎ Venus04:59 – 05:41
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Tuesday, 4 August 2026, the Sun rises at 05:39 and sets at 21:18: the day lasts 15h 39m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 05:41, lasts 8h 23m: twelve night hours of 42 min.
Which planet rules the first hour that day?
Mars, from 05:39 to 06:57: 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.