The Malayalam calendar, also known as the Kollavarsham calendar, is a traditional calendar used in the Malayalam-speaking regions of India, primarily in Kerala state. It follows a 12-month solar cycle and is based on the position of the sun relative to the constellations.

The Malayalam calendar is used for both religious and cultural purposes and includes various festivals, auspicious dates, and holidays that are important to the Malayalam-speaking community. Some of the major festivals celebrated in Malayalam culture, such as Onam, Vishu, and Thiruvathira, are based on the Malayalam calendar.

The Malayalam calendar also includes information on tithis (lunar days), nakshatras (star constellations), yogas (planetary combinations), and karanas (half-tithis), which are important for determining auspicious times for various activities and events, such as weddings, housewarming ceremonies, and other rituals.

Today, the Malayalam calendar is available in both print and digital formats, and several online resources offer free downloads of Malayalam calendars. These calendars often include detailed information on auspicious dates, timings, and events specific to the Malayalam community, making them a useful resource for people following Malayalam traditions and culture.