[LEAPSECS] Multi-timezone meetings

[Gerard Ashton]

On 1/25/2012 8:40 AM, Tony Finch explained it would be desirable to store
information about events that are to be observed in local civil time as a
local time and a location, so that the time zone could be looked up close
to the time of the event, and thereby avoid reliance on stale time zone
offsets or boundaries.

This suggest a desire for an algorithm that accepts as input a latitude
and longitude of a point of interest, and a set of boundaries, and
determines which of the regions the point of interest falls in. Does
anyone know of such an algorithm?

Gerard Ashton