Clock Changes in Muscat, Oman 2010

Daylight Saving Time (DST) Not Observed in Year 2010

Oman observed Gulf Standard Time (GST) all year.

Daylight Saving Time has never been used here.

Clocks do not change in Muscat, Oman.

There is no previous DST change in Oman.

Which countries & states use DST and which do not?