Clock Changes in Thimphu, Bhutan 2010

Daylight Saving Time (DST) Not Observed in Year 2010

Bhutan observed Bhutan Time (BTT) all year.

Daylight Saving Time has never been used here.

Clocks do not change in Thimphu, Bhutan.

There is no previous DST change in Bhutan.

Which countries & states use DST and which do not?