Flag for USA Clock Changes in Tucson, Arizona, USA in 2018

No DST

1970 - 2030

No further time changes in 2018
in Tucson

Location of TucsonLocation

Daylight Saving Time (DST) Not Observed in Year 2018

Tucson currently observes Mountain Standard Time (MST) all year.

Daylight Saving Time has not been used since our records start, in 1970.

There is no previous DST change in Tucson, USA.

DST data from before 1970 is not available for Tucson, USA. However, we have earlier DST history for Phoenix, USA available.

Which countries & states use DST and which do not?

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