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 Thursday, 10 December 2026: day of Jupiter
- Sunrise
- 06:54
- Sunset
- 16:57
- Next sunrise
- 06:55
A day hour lasts 50 min; a night hour, 1h 10m. Local time (Asia/Tehran).
Day
- 1♃︎ Jupiter06:54 – 07:44
- 2♂︎ Mars07:44 – 08:34
- 3☉︎ Sun08:34 – 09:25
- 4♀︎ Venus09:25 – 10:15
- 5☿︎ Mercury10:15 – 11:05
- 6☽︎ Moon11:05 – 11:55
- 7♄︎ Saturn11:55 – 12:46
- 8♃︎ Jupiter12:46 – 13:36
- 9♂︎ Mars13:36 – 14:26
- 10☉︎ Sun14:26 – 15:17
- 11♀︎ Venus15:17 – 16:07
- 12☿︎ Mercury16:07 – 16:57
Night
- 1☽︎ Moon16:57 – 18:07
- 2♄︎ Saturn18:07 – 19:17
- 3♃︎ Jupiter19:17 – 20:26
- 4♂︎ Mars20:26 – 21:36
- 5☉︎ Sun21:36 – 22:46
- 6♀︎ Venus22:46 – 23:56
- 7☿︎ Mercury23:56 – 01:06
- 8☽︎ Moon01:06 – 02:15
- 9♄︎ Saturn02:15 – 03:25
- 10♃︎ Jupiter03:25 – 04:35
- 11♂︎ Mars04:35 – 05:45
- 12☉︎ Sun05:45 – 06:55
Questions
How are the planetary hours calculated in Isfahan?
On Thursday, 10 December 2026, the Sun rises at 06:54 and sets at 16:57: the day lasts 10h 03m, that is twelve day hours of 50 min. The night, until the next sunrise at 06:55, lasts 13h 57m: twelve night hours of 1h 10m.
Which planet rules the first hour that day?
Jupiter, from 06:54 to 07:44: 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.