Answer : It depends on their specialization.
Some interior designers focus on residential design, others on commercial or hospitality design. Within those specialties, some designers might specialize in new construction, while others might focus more on remodeling or renovation projects.
In general, though, most interior designers spend their days meeting with clients, sketching out ideas, selecting finishes and furnishings, measuring spaces, and orchestrating the work of contractors and other professionals. They also typically spend a lot of time in front of a computer drafting plans and presentations. And finally, they often do a good bit of traveling to visit suppliers or job sites.