Planetary hours
in Tehran.
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, 29 July 2026: day of Mercury
- Sunrise
- 05:09
- Sunset
- 19:11
- Next sunrise
- 05:10
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Asia/Tehran).
Day
- 1☿︎ Mercury05:09 – 06:19
- 2☽︎ Moon06:19 – 07:30
- 3♄︎ Saturn07:30 – 08:40
- 4♃︎ Jupiter08:40 – 09:50
- 5♂︎ Mars09:50 – 11:00
- 6☉︎ Sun11:00 – 12:10
- 7♀︎ Venus12:10 – 13:20
- 8☿︎ Mercury13:20 – 14:30
- 9☽︎ Moon14:30 – 15:40
- 10♄︎ Saturn15:40 – 16:51
- 11♃︎ Jupiter16:51 – 18:01
- 12♂︎ Mars18:01 – 19:11
Night
- 1☉︎ Sun19:11 – 20:01
- 2♀︎ Venus20:01 – 20:51
- 3☿︎ Mercury20:51 – 21:41
- 4☽︎ Moon21:41 – 22:31
- 5♄︎ Saturn22:31 – 23:21
- 6♃︎ Jupiter23:21 – 00:10
- 7♂︎ Mars00:10 – 01:00
- 8☉︎ Sun01:00 – 01:50
- 9♀︎ Venus01:50 – 02:40
- 10☿︎ Mercury02:40 – 03:30
- 11☽︎ Moon03:30 – 04:20
- 12♄︎ Saturn04:20 – 05:10
Questions
How are the planetary hours calculated in Tehran?
On Wednesday, 29 July 2026, the Sun rises at 05:09 and sets at 19:11: the day lasts 14h 02m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 05:10, lasts 9h 59m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Mercury, from 05:09 to 06:19: 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.