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 Sunday, 27 December 2026: day of the Sun
- Sunrise
- 07:03
- Sunset
- 17:04
- Next sunrise
- 07:04
A day hour lasts 50 min; a night hour, 1h 10m. Local time (Asia/Tehran).
Day
- 1☉︎ Sun07:03 – 07:53
- 2♀︎ Venus07:53 – 08:44
- 3☿︎ Mercury08:44 – 09:34
- 4☽︎ Moon09:34 – 10:24
- 5♄︎ Saturn10:24 – 11:14
- 6♃︎ Jupiter11:14 – 12:04
- 7♂︎ Mars12:04 – 12:54
- 8☉︎ Sun12:54 – 13:44
- 9♀︎ Venus13:44 – 14:34
- 10☿︎ Mercury14:34 – 15:24
- 11☽︎ Moon15:24 – 16:14
- 12♄︎ Saturn16:14 – 17:04
Night
- 1♃︎ Jupiter17:04 – 18:14
- 2♂︎ Mars18:14 – 19:24
- 3☉︎ Sun19:24 – 20:34
- 4♀︎ Venus20:34 – 21:44
- 5☿︎ Mercury21:44 – 22:54
- 6☽︎ Moon22:54 – 00:04
- 7♄︎ Saturn00:04 – 01:14
- 8♃︎ Jupiter01:14 – 02:24
- 9♂︎ Mars02:24 – 03:34
- 10☉︎ Sun03:34 – 04:44
- 11♀︎ Venus04:44 – 05:54
- 12☿︎ Mercury05:54 – 07:04
Questions
How are the planetary hours calculated in Isfahan?
On Sunday, 27 December 2026, the Sun rises at 07:03 and sets at 17:04: the day lasts 10h 01m, that is twelve day hours of 50 min. The night, until the next sunrise at 07:04, lasts 13h 59m: twelve night hours of 1h 10m.
Which planet rules the first hour that day?
The Sun, from 07:03 to 07:53: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.