| Current: | AST — Atlantic Standard Time |
|---|---|
| Next Change: | ADT — Atlantic Daylight Time |
| Current Offset: | UTC/GMT -4 hours |
| Difference: | 1 hour ahead of Columbus |
2025 Time Zones - Ohio
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
The graph above illustrates clock changes in Ohio during 2025.
Time Changes in Ohio 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 | AST → ADT | +1 hour (DST start) | UTC-3h |
| Sun, Nov 3 at 2:00 am | ADT → AST | -1 hour (DST end) | UTC-4h | |
| 2025 | Sun, Mar 9 at 2:00 am | AST → ADT | +1 hour (DST start) | UTC-3h |
| Sun, Nov 2 at 2:00 am | ADT → AST | -1 hour (DST end) | UTC-4h | |
| 2026 | Sun, Mar 8 at 2:00 am | AST → ADT | +1 hour (DST start) | UTC-3h |
| Sun, Nov 1 at 2:00 am | ADT → AST | -1 hour (DST end) | UTC-4h | |
| 2027 | Sun, Mar 14 at 2:00 am | AST → ADT | +1 hour (DST start) | UTC-3h |
| Sun, Nov 7 at 2:00 am | ADT → AST | -1 hour (DST end) | UTC-4h | |
| 2028 | Sun, Mar 12 at 2:00 am | AST → ADT | +1 hour (DST start) | UTC-3h |
| Sun, Nov 5 at 2:00 am | ADT → AST | -1 hour (DST end) | UTC-4h | |
| * All times are local Ohio time. Next time change is highlighted. | ||||
Data for the years before 1970 is not available for Ohio, however, we have earlier time zone history for Halifax available.
More Information
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Ohio
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Friday, December 5, 2025