Clock Changes in Bangkok, Thailand (Krung Thep) 1979

Daylight Saving Time (DST) Not Observed in Year 1979

Thailand observed Indochina Time (ICT) all year.

Daylight Saving Time has never been used here.

Clocks do not change in Bangkok, Thailand.

There is no previous DST change in Thailand.

Which countries & states use DST and which do not?