Residents are being reminded that the clocks go back an hour at the weekend – officially marking the end of British Summer Time.
Clocks should be reset at 2am on Sunday morning.
Highways chiefs are urging motorists to be prepared for the change which will bring longer, darker evenings.
Cllr Dean Collins, Derbyshire County Council’s deputy cabinet member for jobs, economy and transport, said: “It often takes road users by surprise when the clocks go back.
“We’re urging people to take extra care while they’re getting used to the darker evenings.”