Time difference between Illinois and South Dakota
World time board
Illinois · United StatesUTC-05:00
06:07 PMFRI 02.10.2026
Now 06:07 PM|Live
Drag or scroll · click an hour · ◀ ▶ by hour · 3 days of range
Work–
daydawn / dusknight
- Time difference
- same time
- Changes with DST
- No
- Day difference
- Same day
- Typical workday overlap (9am–6pm)
- 9 hours
| Illinois | South Dakota |
|---|---|
| 00:00 | 00:00 |
| 01:00 | 01:00 |
| 02:00 | 02:00 |
| 03:00 | 03:00 |
| 04:00 | 04:00 |
| 05:00 | 05:00 |
| 06:00 | 06:00 |
| 07:00 | 07:00 |
| 08:00 | 08:00 |
| 09:00 | 09:00 |
| 10:00 | 10:00 |
| 11:00 | 11:00 |
| 12:00 | 12:00 |
| 13:00 | 13:00 |
| 14:00 | 14:00 |
| 15:00 | 15:00 |
| 16:00 | 16:00 |
| 17:00 | 17:00 |
| 18:00 | 18:00 |
| 19:00 | 19:00 |
| 20:00 | 20:00 |
| 21:00 | 21:00 |
| 22:00 | 22:00 |
| 23:00 | 23:00 |
How the time difference changes over the next 12 months
Illinois and South Dakota currently show the same time. The difference stays the same all year, because Illinois and South Dakota change their clocks on the same dates.
Working hours
With a 9:00 AM–6:00 PM working day in both places, the shared hours are 9:00 AM–6:00 PM in Illinois, which is 9:00 AM–6:00 PM in South Dakota (9 hours a day).
Frequently asked questions
- What is the time difference between Illinois and South Dakota?
- Illinois and South Dakota currently show the same time.
- Does the time difference between Illinois and South Dakota change during the year?
- No. The difference stays the same all year, because Illinois and South Dakota change their clocks on the same dates.