Summary:
This April 2017 file photo shows students from a school in Puducherry preparing for the zero shadow moment. To know where exactly it is happening now and when it will happen next you can download the Zero Shadow Day app from the Astronomical Society of India. When the sun is at the zenith (the highest point in the sky) its rays will be hitting a particular point exactly perpendicular to the surface. This will make your shadow be exactly under you, making it look like there are no shadows. Take a small jump and you can see your shadow..