| Current: | MDT — Mountain Daylight Time |
|---|---|
| Next Change: | MST — Mountain Standard Time |
| Current Offset: | UTC/GMT -6 hours |
| Difference: | 2 hours behind Columbus |
2025 Time Zones - Keystone
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
The graph above illustrates clock changes in Keystone during 2025.
Time Changes in Keystone Over the Years
Daylight Saving Time (DST) changes do not necessarily occur on the same date every year.
| Year | Date & Time | Abbreviation | Time Change | Offset After |
|---|---|---|---|---|
| 2024 | Sun, Mar 10 at 2:00 am | MST → MDT | +1 hour (DST start) | UTC-6h |
| Sun, Nov 3 at 2:00 am | MDT → MST | -1 hour (DST end) | UTC-7h | |
| 2025 | Sun, Mar 9 at 2:00 am | MST → MDT | +1 hour (DST start) | UTC-6h |
| Sun, Nov 2 at 2:00 am | MDT → MST | -1 hour (DST end) | UTC-7h | |
| 2026 | Sun, Mar 8 at 2:00 am | MST → MDT | +1 hour (DST start) | UTC-6h |
| Sun, Nov 1 at 2:00 am | MDT → MST | -1 hour (DST end) | UTC-7h | |
| 2027 | Sun, Mar 14 at 2:00 am | MST → MDT | +1 hour (DST start) | UTC-6h |
| Sun, Nov 7 at 2:00 am | MDT → MST | -1 hour (DST end) | UTC-7h | |
| 2028 | Sun, Mar 12 at 2:00 am | MST → MDT | +1 hour (DST start) | UTC-6h |
| Sun, Nov 5 at 2:00 am | MDT → MST | -1 hour (DST end) | UTC-7h | |
| * All times are local Keystone time. Next time change is highlighted. | ||||
Data for the years before 1970 is not available for Keystone, however, we have earlier time zone history for Denver available.
More Information
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Keystone
USA
7:5825am
Saturday, June 14, 2025