No DST
1970 - 2030
| No further time changes in 2024 in Sierra Vista-Douglas, AZ Metro Area |
Daylight Saving Time (DST) Not Observed in Year 2024
USA currently observes 7 time zones all year.
Daylight Saving Time has not been used since our records start, in 1970.
DST data from before 1970 is not available for Sierra Vista-Douglas, AZ Metro Area, USA. However, we have earlier DST history for Phoenix, USA available.