
Starting on the 14th September, Disneyland Paris Resort will be reducing hours at both its parks.
The reduced hours of both Disneyland Park and Walt Disney Studios Park will see both parks close at 6:00pm – 10:00am to 6:00pm.

Hours currently are 10:00am to 8:00pm at Disneyland Park, and 10:00am to 7:00pm at Walt Disney Studios Park.

Effectively, hours will be cut two hours at Disneyland Park, and one hour at Walt Disney Studios Park.
Disneyland Park will remain open an hour later, until 7:00pm, on weekends. Park hours for Disneyland Paris can be found here.
H/T WDWNT