Read the table
The first Hora after sunrise belongs to the planet that names the weekday. On Sunday it is the Sun; on Monday it is the Moon. Subsequent rulers follow the seven-name sequence Sun, Venus, Mercury, Moon, Saturn, Jupiter, Mars, looping through the night. The selected weekday continues until the following sunrise, even when the civil clock passes midnight.
Daylight and darkness are each divided into twelve equal parts, so a summer daylight Hora can be longer than a night Hora. On a date near an equinox they may be closer in length. The result shows local clock boundaries, while the CSV also retains unrounded UTC instants. Read the calculation guide for a worked sequence.
Hora is one layer of timing
Hora assigns a traditional planetary ruler to an interval. Choghadiya divides the same day and night into eight parts each, and Rahu Kalam selects one daylight eighth by weekday. They are separate tables; matching their clock ranges by name alone would give a wrong comparison. A ruler's traditional association is a label for the interval, not a measured chance of success.
References: Drik Panchang Hora table; Hāyanaratna planetary sequence; Astronomy Engine rise/set calculation.