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 Wednesday, 27 May 2026: day of Mercury
- Sunrise
- 04:58
- Sunset
- 19:02
- Next sunrise
- 04:57
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Asia/Tehran).
Day
- 1☿︎ Mercury04:58 – 06:08
- 2☽︎ Moon06:08 – 07:19
- 3♄︎ Saturn07:19 – 08:29
- 4♃︎ Jupiter08:29 – 09:39
- 5♂︎ Mars09:39 – 10:50
- 6☉︎ Sun10:50 – 12:00
- 7♀︎ Venus12:00 – 13:11
- 8☿︎ Mercury13:11 – 14:21
- 9☽︎ Moon14:21 – 15:31
- 10♄︎ Saturn15:31 – 16:42
- 11♃︎ Jupiter16:42 – 17:52
- 12♂︎ Mars17:52 – 19:02
Night
- 1☉︎ Sun19:02 – 19:52
- 2♀︎ Venus19:52 – 20:42
- 3☿︎ Mercury20:42 – 21:31
- 4☽︎ Moon21:31 – 22:21
- 5♄︎ Saturn22:21 – 23:10
- 6♃︎ Jupiter23:10 – 00:00
- 7♂︎ Mars00:00 – 00:50
- 8☉︎ Sun00:50 – 01:39
- 9♀︎ Venus01:39 – 02:29
- 10☿︎ Mercury02:29 – 03:18
- 11☽︎ Moon03:18 – 04:08
- 12♄︎ Saturn04:08 – 04:57
Questions
How are the planetary hours calculated in Isfahan?
On Wednesday, 27 May 2026, the Sun rises at 04:58 and sets at 19:02: the day lasts 14h 05m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 04:57, lasts 9h 55m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Mercury, from 04:58 to 06:08: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.