Tulā is one of the twelve months in the Indian solar calendar. Tula corresponds to the zodiacal sign of

Libra Libra generally refers to: * Libra (constellation), a constellation * Libra (astrology), an astrological sign based on the star constellation Libra may also refer to: Arts and entertainment * ''Libra'' (novel), a 1988 novel by Don DeLillo Musi ...

, and overlaps with about the second half of October and about the first half of November in the

Gregorian calendar The Gregorian calendar is the calendar used in most parts of the world. It was introduced in October 1582 by Pope Gregory XIII as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years di ...

. In Vedic texts, the Tula month is called Issa (IAST: Issa), but in these ancient texts it has no zodiacal associations. The solar month of Tula overlaps with its lunar month Kartik, in Hindu lunisolar calendars. The Tula marks the end of monsoon harvests, a period of cooler autumn, a break before the winter crop, and many annual festivals and fairs set by the lunar cycle are observed in and about this part of the calendar across the Indian subcontinent. It is preceded by the solar month of Kanyā, and followed by the solar month of Vṛścika. The sun, according to the Hindu texts, begins it southward journey and days begin to get shorter. The Tula month is called ''Aipassi'' in the Tamil Hindu calendar. The ancient and medieval era Sanskrit texts of India vary in their calculations about the duration of Tula, just like they do with other months. For example, the ''Surya Siddhanta'', dated to c. 400 CE, calculates the duration of Tula to be 29 days, 21 hours, 26 minutes and 24 seconds. In contrast, the ''Arya Siddhanta'' calculates the duration of the Tula month to be 29 days, 21 hours, 40 minutes and 48 seconds. The Indian solar month names are significant in epigraphical studies of South Asia. For example, ''Tula'' month, along with other solar months, are found inscribed in medieval era Hindu temples. Tula is also an astrological sign in Indian horoscope systems, corresponding to

Libra (astrology) __NOTOC__ Libra () is the seventh astrological sign in the zodiac. It spans 180°–210° celestial longitude. The Sun transits this sign on average between September 22 and October 23. The symbol of the scales is based on the Scales of Ju ...

. Tula is also the twenty-second month in the

Darian calendar The Darian calendar is a proposed system of timekeeping designed to serve the needs of any possible future human settlers on the planet Mars. It was created by aerospace engineer, political scientist, and space jurist Thomas Gangale in 1985 and ...

for the planet

Mars Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury. In the English language, Mars is named for the Roman god of war. Mars is a terrestrial planet with a thin atmos ...

, when the

Sun The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core. The Sun radiates this energy mainly as light, ultraviolet, and infrared rad ...

Sun traverses the eastern sector of the constellation Libra as seen from Mars.

References

Hindu solar months {{Hinduism-stub