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School of Vedic Sciences, FORE
Panchanga

Ṛtu

ऋतु

Season: one of six two-month seasons of the year.

Definition

The year is divided into six ṛtus of two months each: Vasanta (spring), Grīṣma (summer), Varṣā (rains), Śarad (autumn), Hemanta (early winter) and Śiśira (late winter). Calendars define them either by lunar months, Vasanta being Caitra and Vaiśākha, or by the Sun's passage through pairs of signs. Ayurveda's ṛtucaryā describes a regimen for each season.

Articles that use this term

  • PanchangaExplainer

    Navratri, twice a year: Chaitra and Sharad

    The two nine-night festivals of the goddess, at the spring and autumn turns of the year, and the rules almanacs use to fix their first and last days.

    7 min read · 1 October 2026