Planetary hours
LiveHora
Twenty-four planetary hours. They open with the weekday's own lord at sunrise and hand over in Chaldean order, the same sequence that gave the weekdays their names.
Running now in Mumbai
☽Moon hora
12:37–13:39 · Travel, anything domestic
Daytime hora
Twelve, from sunrise to sunset
Night hora
Twelve, from sunset to the next sunrise
Where the weekday names come from
Horas run in Chaldean order — Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon. That is descending by how fast each one appears to move. Run twenty-four of them and the next sunrise lands three places further along the seven-name cycle. That is exactly why Sunday is followed by Monday and not by Saturn's day. Our weekday names are a fossil of this table.
Not equal to sixty minutes
A hora is a twelfth of daylight or a twelfth of night, so it is only sixty minutes near the equinox. In a Delhi December the day hora runs under fifty-five minutes while the night hora runs past sixty-five. We compute both from real sunrise and sunset for your city rather than splitting the clock.
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