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Clock Changes in Tucson, Sonora, Mexico

Last change: 1998
Oct
25
1 hour Back

Oct 25, 1998, 2:00 am

No further time changes in 2020 in Tucson
Location of TucsonLocation

Daylight Saving Time (DST) Not Observed in Year 2020

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

DST is no longer in use.

Clocks do not change in Tucson, Mexico.

The previous DST change in Tucson was on October 25, 1998.

Try selecting a different year below.

Which countries & states use DST and which do not?

Other years: 1996 | 1997 | 1998 |

Daylight Saving Time in Other Years

DST changes do not necessarily occur on the same date every year.

YearDST Start (Clock Forward)DST End (Clock Backward)
2020 — 2029DST not observed
All times are local for Tucson. Current year is highlighted.

Data for the years before 1970 is not available for Tucson, however, we have earlier time zone history for Hermosillo available.

Detailed time zone and clock changes in Tucson