Panchang which is also known as Panchangam is used to denote five elements of Vedic Astrology, namely Tithi, Nakshatra, Yoga, Karana and Var i.e. weekday. These five elements when combined for a day are known as Panchang. These five elements change every day with the movement of the Moon and the Sun. Hence, followers of Hinduism refer Panchangam on day to day basis. Panchang is also known as Hindu Calendar.