, Volume 16, Issue 1, pp 29–37

Sundials: Ancestors of our clocks

General / Article

DOI: 10.1007/s12045-011-0005-4

Cite this article as:
Anoop, P.D. Reson (2011) 16: 29. doi:10.1007/s12045-011-0005-4


This article deals with the timekeepers of the past, the sundials. Apart from discussing the structure of a few common sundials, we point out the reasons for the variation between sundial time and the time shown by mechanical timekeepers.


Sundialcelestial sphereequation of timetime zonesdaylight saving time

Copyright information

© Indian Academy of Sciences 2011

Authors and Affiliations

  1. 1.Department of PhysicsVishwa VidyapeethamKollamIndia