It is recommended that puppies are not left alone for more than 2 to 3 hours daily and given a few hours of free run time. For huskies over 18 months old, however, they can handle longer periods in their crate, typically 4 to 6 hours a day. This gives them the space to relax and recharge while allowing enough time outside the crate to stretch their legs and burn off some energy. Remember always to consider your pet's well-being and adjust their schedules accordingly.