Planetary hours
in Isfahan.
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 Monday, 8 December 2025: day of the Moon
- Sunrise
- 06:52
- Sunset
- 16:57
- Next sunrise
- 06:53
A day hour lasts 50 min; a night hour, 1h 10m. Local time (Asia/Tehran).
Day
- 1☽︎ Moon06:52 – 07:43
- 2♄︎ Saturn07:43 – 08:33
- 3♃︎ Jupiter08:33 – 09:24
- 4♂︎ Mars09:24 – 10:14
- 5☉︎ Sun10:14 – 11:04
- 6♀︎ Venus11:04 – 11:55
- 7☿︎ Mercury11:55 – 12:45
- 8☽︎ Moon12:45 – 13:35
- 9♄︎ Saturn13:35 – 14:26
- 10♃︎ Jupiter14:26 – 15:16
- 11♂︎ Mars15:16 – 16:06
- 12☉︎ Sun16:06 – 16:57
Night
- 1♀︎ Venus16:57 – 18:07
- 2☿︎ Mercury18:07 – 19:16
- 3☽︎ Moon19:16 – 20:26
- 4♄︎ Saturn20:26 – 21:36
- 5♃︎ Jupiter21:36 – 22:45
- 6♂︎ Mars22:45 – 23:55
- 7☉︎ Sun23:55 – 01:05
- 8♀︎ Venus01:05 – 02:14
- 9☿︎ Mercury02:14 – 03:24
- 10☽︎ Moon03:24 – 04:34
- 11♄︎ Saturn04:34 – 05:44
- 12♃︎ Jupiter05:44 – 06:53
Questions
How are the planetary hours calculated in Isfahan?
On Monday, 8 December 2025, the Sun rises at 06:52 and sets at 16:57: the day lasts 10h 04m, that is twelve day hours of 50 min. The night, until the next sunrise at 06:53, lasts 13h 56m: twelve night hours of 1h 10m.
Which planet rules the first hour that day?
The Moon, from 06:52 to 07:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.