It will only be a few seconds that the Mumbaikars will not be able to see their own shadow on 15 May. Shocking as it may seem, but on this day, the sun's position will be exactly 90 degrees, in which case the shadow of man will not be created. This phenomenon is known as the No Shadow Day. This happens when the sun is completely overhead. This happens twice a year when the Sun goes from the equator to the north side of 23rd and again comes back from the equator. On both occasions, the position of the Sun is of zero shadow day. From March 21 to June 21, the Sun goes from the equator to the north, and during the period 21 June to 23 September, the sun starts coming again on the equator.
Nehru Planetarium Chairman Arvind Paranjape said that on the 15th of May, Mumbai will be shadowless from 12.34 p.m. to 12:36 pm.