In India, we have Indian national calendar which is derived from the Hindu calendar which is used since the ancient times. The Indian national calendar is called सक पंचांग (Saka/Sak Panchang) or Saka/Sak Calender which is used along with the Georgian calendar for the official work. Saka calendar is not only used in India, but also in Java, Bali, and Indonesia.

Hindu calendar has its origin in वेद (Ved), and has been standardized way back in 5th century BCE. Later, Hindu calendar has been refined over centuries by well-known ancient Indian mathematicians and astrologers such as अर्यभट्ट (Aryabhatt), वराहमिहिर (Varāhamihira), भास्कर (Bhaskar) etc. Calenders based on Indian Hindu calender are also used in Cambodia, Laos, Myanmar, Sri Lanka, and Thailand.

The Hindu religion and astrology make extensive use of this Saka calendar. This means that Hindu festivals, timing of seasons, constellations and New Year, and other important information are based on this traditional calendar.

Month is called माह (Maah) and Zodiac is called राशि चक्र (Rashi Chakr).

Months and zodiacs as per सक पंचांग (Saka/Sak Panchang):