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 Tuesday, 8 September 2026: day of Mars
- Sunrise
- 05:42
- Sunset
- 18:19
- Next sunrise
- 05:43
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Asia/Tehran).
Day
- 1♂︎ Mars05:42 – 06:45
- 2☉︎ Sun06:45 – 07:48
- 3♀︎ Venus07:48 – 08:51
- 4☿︎ Mercury08:51 – 09:54
- 5☽︎ Moon09:54 – 10:57
- 6♄︎ Saturn10:57 – 12:00
- 7♃︎ Jupiter12:00 – 13:03
- 8♂︎ Mars13:03 – 14:06
- 9☉︎ Sun14:06 – 15:09
- 10♀︎ Venus15:09 – 16:13
- 11☿︎ Mercury16:13 – 17:16
- 12☽︎ Moon17:16 – 18:19
Night
- 1♄︎ Saturn18:19 – 19:16
- 2♃︎ Jupiter19:16 – 20:13
- 3♂︎ Mars20:13 – 21:10
- 4☉︎ Sun21:10 – 22:07
- 5♀︎ Venus22:07 – 23:04
- 6☿︎ Mercury23:04 – 00:01
- 7☽︎ Moon00:01 – 00:58
- 8♄︎ Saturn00:58 – 01:55
- 9♃︎ Jupiter01:55 – 02:52
- 10♂︎ Mars02:52 – 03:49
- 11☉︎ Sun03:49 – 04:46
- 12♀︎ Venus04:46 – 05:43
Questions
How are the planetary hours calculated in Isfahan?
On Tuesday, 8 September 2026, the Sun rises at 05:42 and sets at 18:19: the day lasts 12h 37m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:43, lasts 11h 24m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Mars, from 05:42 to 06:45: 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.