Today at 1:18 pm, the sun reached its zenith at 90º above the horizon in Kuala Lumpur. At that very moment objects cast no shadow. The following graphic shows the sun path:
Source: http://www.gaisma.com/en/location/kuala-lumpur.html
And from
http://www.timeanddate.com/worldclock/city.html?n=122
for Monday, 28 March 2011:
Sunrise at 07:15 in direction 87° East -->
Sunset at 19:22 in direction 273° West <--
Duration of day: 12 hours, 7 minutes (10 seconds longer than yesterday)
Sun near zenith at 13:18 at altitude 90° above horizon