Distance between Sarnia and Johnston
Distance from Sarnia to Johnston, IA is 583 miles / 939 kilometers.
Map showing the distance from Sarnia to Johnston
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Air distance: | miles km |
Sarnia
| City: | Sarnia |
| Country: | Canada |
| Coordinates: |
42°58′43″N 82°24′14″W |
Johnston, IA
| City: | Johnston, IA |
| Country: | United States |
| Coordinates: |
41°40′22″N 93°41′51″W |
Time difference between Sarnia and Johnston
The time difference between Sarnia and Johnston is 1 hour. Johnston is 1 hour behind Sarnia. Current local time in Sarnia is 14:49 EST (2025-01-04) and time in Johnston is 13:49 CST (2025-01-04).