Crystal Leisure Centre in Stourbridge will now open between 6.30am and 10pm on weekdays and from 7am to 6pm over the weekend.
It means the venue will be open for longer than its usual time at 7.15am, although its weekend hours have been cut amid the changes.
The building will now open from 7am and 6pm with the current times being from 7.30am to 7.30pm and in comes in response to demand.
Councillor Simon Phipps, cabinet member responsible for leisure centres, said: "We’ve had many customers saying they’re keen to start their workouts, whether in the pool or at the gym, earlier on weekdays so I’m delighted we’re now able to open our doors at 6.30am for them.
"We’ve also reviewed the opening times across the whole of the centre to ensure we are open when demand is greatest.”
The gym will be open between 6.30am to 9.30pm and on the weekend from 8am to 4pm, with the last admission being half an hour before closure. It means the facility will be open for longer during the weekday, with the facility currently open between 7.15am and 9.30pm.
The sports hall will now be open between 9am to 10pm Monday to Friday and 9am to 6pm over the weekend, with the last admission being an hour before.
And the squash court will open Monday to Friday between 8.40am and 10pm, with last admission being 9.20pm. It will open over the weekend between 8.40am to 6pm, with last admission being 5.20pm.
The 25m pool will also open earlier on weekends, at 7am. The leisure pool weekend opening hours will also change to 9am to 4pm and the 25m pool will also close at 4pm both days.
People have been advised to visit dbleisure.co.uk for up-to-date session times.