Longueuil, Quebec, Canada is 1 hour ahead of Sioux Falls, South Dakota, USA
2:51 am Friday, in Longueuil, Quebec, Canada is
1:51 am Friday, in Sioux Falls, South Dakota, USA
See distance from Longueuil to Sioux Falls
Both Longueuil and Sioux Falls observe DST. However, since DST begins and ends at the same time in these two cities, Longueuil - Sioux Falls time difference remains the same throughout the year.