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 Thursday, 2 October 2025: day of Jupiter
- Sunrise
- 07:28
- Sunset
- 18:56
- Next sunrise
- 07:29
A day hour lasts 57 min; a night hour, 1h 03m. Local time (Europe/London).
Day
- 1♃︎ Jupiter07:28 – 08:25
- 2♂︎ Mars08:25 – 09:22
- 3☉︎ Sun09:22 – 10:20
- 4♀︎ Venus10:20 – 11:17
- 5☿︎ Mercury11:17 – 12:15
- 6☽︎ Moon12:15 – 13:12
- 7♄︎ Saturn13:12 – 14:09
- 8♃︎ Jupiter14:09 – 15:07
- 9♂︎ Mars15:07 – 16:04
- 10☉︎ Sun16:04 – 17:02
- 11♀︎ Venus17:02 – 17:59
- 12☿︎ Mercury17:59 – 18:56
Night
- 1☽︎ Moon18:56 – 19:59
- 2♄︎ Saturn19:59 – 21:02
- 3♃︎ Jupiter21:02 – 22:05
- 4♂︎ Mars22:05 – 23:07
- 5☉︎ Sun23:07 – 00:10
- 6♀︎ Venus00:10 – 01:13
- 7☿︎ Mercury01:13 – 02:16
- 8☽︎ Moon02:16 – 03:18
- 9♄︎ Saturn03:18 – 04:21
- 10♃︎ Jupiter04:21 – 05:24
- 11♂︎ Mars05:24 – 06:27
- 12☉︎ Sun06:27 – 07:29
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Belfast?
On Thursday, 2 October 2025, the Sun rises at 07:28 and sets at 18:56: the day lasts 11h 29m, that is twelve day hours of 57 min. The night, until the next sunrise at 07:29, lasts 12h 33m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Jupiter, from 07:28 to 08:25: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.