The Surprising Secrets of Jantar Mantar 2025

We recently visited the Jantar Mantar during our journey to Jaipur. It has a strong connection with shadows and the movement of the sun. Now, let us go a little deeper into our experience. As we walked around the site, we noticed that every structure had a specific shape and orientation, carefully designed for precise observation.

We were told that Jantar Mantar was built about 300 years ago. We also learnt that the word Jantar means instruments, and Mantar means calculations. We were shocked to learn how accurate the biggest sundial is, as it can tell time with an accuracy of up to 2 seconds. The smaller sundial is also designed with high precision, which clearly shows the scale and vision of the instruments. The instruments use the relationship between the sun and shadows to calculate time.

We also learnt that 21 March and 23 September are equinoxes, when the sun is above the equator, and Jantar Mantar’s instruments are built to track these special solar positions. There are five Jantar Mantars in India, located in Delhi, Jaipur, Ujjain, Varanasi, and Mathura. Among them, the Jaipur Jantar Mantar has the largest sundial. Knowing that astronomers still study these instruments today made the site feel even more important and alive.

Overall, the experience was really fun and educational. We especially enjoyed making our own sundial, which quickly turned into a friendly competition. Jantar Mantar is a timeless scientific site filled with many interesting facts and secrets. It was a memorable learning experience for all of us.

Team Members: Aaradhya G, Aaradhya S, Ananya P, Aradhya P, Divyakshi, Ganiksh, Kashvi, Maira, Mishti, Nitya, Ritisha, Siddik, Vatsala (Uttam School For Girls, Shastri Nagar, Ghaziabad).

EdTerra Edventures conducts various other programs for the youth. If you go to school and are under 17 years of age, ask your school to contact us to arrange a visit to your school for an introduction to “Jantar Mantar ” and other journeys under EdTerra’s India Discovery Program.

For queries call +91-11-48885800 or visit EdTerra Browse Journeys page to know more about the programs we offer to school students. Visit our FB page by clickingHERE

Uttam School For Girls, Shastri Nagar, Ghaziabad

At Uttam School for Girls, Ghaziabad, we lay strong emphasis on imparting quality education to nurture the physical, mental, and spiritual potential inherent in every child. It is our mission to instill values, attitudes, and qualities that shape confident individuals, responsible citizens, and compassionate human beings. Fostering student achievement and high performance is at the heart of the school’s ethos, supported by continuous evaluation of academic progress and personal development. We thrive on providing a joyful learning environment that encourages intellectual, social, and emotional growth with cultural awareness. Guided by our vision, we nurture today’s girls to become the leaders of tomorrow.