Currently the NEST thermostat is only available in the USA and Canada. But is it possible to install the Thermostat in also on the other site of the ocean? Recently the distribution was extended to the UK also, but on mainland Europe there is no official support.
Nevertheless it is possible to install the NEST thermostat in the rest of Europe. With the update to NEST software version 4.0 it is now possible to set postal codes in Europe. With this setting time zones are set correctly. More info on the update can be found here.