Can I start a graduate job despite not having the ceremony before I start?

So, I have exams in May and then I'll also have some in late July/early August (due to mitigating circumstances). The earliest possible date for me to graduate will be in Jan 2025 and the start date of the job is in late August after all my exams have been completed. I should have the results by the start date. Would I be able to still start in August?

Your able to start applying for graduate jobs 6 months before even graduating

I know, I've applied and I got an offer for a start in August. I'll finish and get my results before the start date but I won't have my ceremony until January 2025.

I suggest you look at this logically. During Covid most graduation ceremonies were delayed for several years. Do you honestly think this affected graduates getting jobs. The ceremony has no bearing on anything.