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, 8 September 2026: day of Mars
- Sunrise
- 06:43
- Sunset
- 19:58
- Next sunrise
- 06:45
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Europe/London).
Day
- 1♂︎ Mars06:43 – 07:49
- 2☉︎ Sun07:49 – 08:55
- 3♀︎ Venus08:55 – 10:02
- 4☿︎ Mercury10:02 – 11:08
- 5☽︎ Moon11:08 – 12:14
- 6♄︎ Saturn12:14 – 13:20
- 7♃︎ Jupiter13:20 – 14:27
- 8♂︎ Mars14:27 – 15:33
- 9☉︎ Sun15:33 – 16:39
- 10♀︎ Venus16:39 – 17:45
- 11☿︎ Mercury17:45 – 18:51
- 12☽︎ Moon18:51 – 19:58
Night
- 1♄︎ Saturn19:58 – 20:52
- 2♃︎ Jupiter20:52 – 21:45
- 3♂︎ Mars21:45 – 22:39
- 4☉︎ Sun22:39 – 23:33
- 5♀︎ Venus23:33 – 00:27
- 6☿︎ Mercury00:27 – 01:21
- 7☽︎ Moon01:21 – 02:15
- 8♄︎ Saturn02:15 – 03:09
- 9♃︎ Jupiter03:09 – 04:03
- 10♂︎ Mars04:03 – 04:57
- 11☉︎ Sun04:57 – 05:51
- 12♀︎ Venus05:51 – 06:45
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Tuesday, 8 September 2026, the Sun rises at 06:43 and sets at 19:58: the day lasts 13h 15m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 06:45, lasts 10h 47m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Mars, from 06:43 to 07:49: 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.