The amount of days to complete your bonus can range from 3-30 days.
For the sports welcome bonus, you have 30 days from your first deposit to place your first wager.
For the Casino welcome bonus, you also have 30 days to use the bonus.
You can find this info on the promotions page in the terms and conditions for the bonus, OR in the bonus menu itself. When reviewing an active bonus, you'll be able see the date in which the bonus expires and if applicable, the requirements needed to fulfill the bonus.