605 area code
Area code 605 is in South Dakota, including Sioux Falls, Rapid City, Aberdeen and Spearfish. It's on Central Time, with parts on Mountain Time.
Central Time · Sioux Falls, Aberdeen and Watertown
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Mountain Time · Rapid City, Spearfish and Sturgis
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Is it a good time to call 605?
Checking…
Business hours are taken as 9 AM to 5 PM on weekdays in the main time zone. US telemarketing rules only allow sales calls between 8 AM and 9 PM local time.
Cities in area code 605
| City | Time zone |
|---|---|
| Sioux Falls, SD | Central Time |
| Rapid City, SD | Mountain Time |
| Aberdeen, SD | Central Time |
| Spearfish, SD | Mountain Time |
| Watertown, SD | Central Time |
| Pierre, SD | Central Time |
| Yankton, SD | Central Time |
| Brookings, SD | Central Time |
| North Sioux City, SD | Central Time |
| Chamberlain, SD | Central Time |
| Sturgis, SD | Mountain Time |
| Huron, SD | Central Time |
More: look up another area code · time zone converter · US time zones map
Questions people ask
Where is area code 605?
Area code 605 is in South Dakota, including Sioux Falls, Rapid City, Aberdeen and Spearfish.
What time zone is area code 605?
605 is on Central Time, with parts on Mountain Time (UTC−6, UTC−5 in summer).
What time is it in area code 605 right now?
The live clock at the top of this page shows the current local time in area code 605.