List of Hindu festivals

Explanatory note
on Hindu festival dates
The Hindu calendar is lunisolar but most festival dates are specified using the lunar portion of the calendar. A lunar day is uniquely identified by three calendar elements: māsa (lunar month), pakṣa (lunar fortnight) and tithi (lunar day).

Furthermore, when specifying the masa, one of two traditions are applicable, viz. amānta / pūrṇimānta. If a festival falls in the waning phase of the moon, these two traditions identify the same lunar day as falling in two different (but successive) masa.

A lunar year is shorter than a solar year by about eleven days. As a result, most Hindu festivals occur on different days in successive years on the Gregorian calendar.

Hindus observe a wide range of festivals and religious celebrations, many of which are rooted in ancient Indian traditions, and often correspond with seasonal transitions. These festivals are scheduled according to either the solar calendar or the lunisolar calendar, and their observance often varies regionally. Many festivals are specific to certain sects or are primarily observed in particular regions of the Indian subcontinent.