A 13 hour day seen at Jantar Mantar in New Delhi

If there is a13 hour day and the longest one at that, it is today, on Monday 21st June, 2010 for this year. Several students have rushed to the Jantar Mantar in New Delhi and Jaipur to make a study of the geological phenomenon of light and night, and also to make several experiments, as well, according to space (an Institution of Science) directors C.B. Devgun in Delhi today, Monday.
The Jantar Mantar astronomical spectacles were constructed by King Jai Singh of Rajasthan in 1724. Uttrarayana (Northern journey) of the Sun ends today.
The Sun rises at 5.24 Am this day and sets T 7.22 in India’s capital city.