<p><b><big>Nadivalaya Yantra</big></b> is a double equatorial sundial. This sundial is utilsable from the September equinox to the March one. (we are in October and you can read the local time, up to the minute). 
</p>
<a href="//commons.wikimedia.org/w/index.php?title=User:User:Daniel_VILLAFRUELA&amp;action=edit&amp;redlink=1" class="new" title="User:User:Daniel VILLAFRUELA (page does not exist)"> Daniel VILLAFRUELA</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>