Reviewed by Dr. L. Nageshwwar Rao, PhD (Astrology), Consulting Astrologer · Last reviewed 24 May 2026 · How we compute this
A hora is one of 24 planetary hours that divide the daylight (sunrise → sunset) and the night (sunset → next sunrise) into twelve equal segments each. Every hora is ruled by one of the seven classical planets — and inherits that planet's natural karakatva (what it is good for). Get today's full 24-hora live table for any place below.
Each hora carries the natural karakatvas (significations) of its ruling planet, as enumerated by Varahamihira in Brihat Jataka 2.5–2.11. The summary below distils those classical attributions.
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A hora is a planetary hour — a division of the day or night ruled by one of the seven classical planets. The day from sunrise to sunset is divided into 12 equal horas, and the night from sunset to next sunrise into another 12, for 24 horas in all. Each carries the qualities (karakatva) of its ruling planet.
The very first hora of every day — the one beginning at sunrise — is always ruled by the lord of that weekday. Sunday begins with the Sun, Monday with the Moon, Tuesday with Mars, and so on. After that, the planets follow a fixed reverse-Chaldean order — Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon — and cycle through all 24 horas of the day-night.
Choghadiya divides each day and night into 8 equal parts (16 total), while horas divide each into 12 equal parts (24 total). Choghadiya assigns one of seven named auspicious qualities; horas instead identify the ruling planet and its natural karakatvas (what it is good for). Practitioners often consult both — Choghadiya for a quick auspicious/inauspicious label, horas for a more granular planetary alignment to the task at hand.
Because horas are defined by the actual length of daylight and night, not by clock hours. In summer the daylight stretches longer, so each daytime hora is more than 60 minutes; in winter daytime horas shrink and nighttime ones expand. Near the equator the two stay close; at high latitudes the difference is large.
Classically, Jupiter, Mercury, Venus and Moon horas are favoured for new starts, learning, marriage talks and auspicious work. Sun is preferred for authority and government matters. Mars and Saturn are usually avoided for new beginnings — Mars for anything peaceful, Saturn for anything joyful — though both are useful for hard, disciplined or competitive work.
No. A clock hour is a fixed 60 minutes; a hora is one-twelfth of the day or one-twelfth of the night, so its length changes with the season and latitude. On the equinox at the equator a hora is almost exactly 60 minutes; everywhere else it is not.
For everyday timing (when to send an email, when to start a meeting, when to leave on a trip) hora is the simplest classical anchor. For major events like marriage, gruha-pravesha or foundation-laying, classical sources expect a full muhurta — tithi, nakshatra, yoga, karana, vara and the planets — not a hora alone.
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