If your clock is already set to the right time, the website is likely misconfigured, and there is nothing you can do to resolve the issue. You can notify the website’s administrator about the problem.
Ma tha an cleoc agad ceart, tha teans gu bheil an làrach-lìn air a dhroch-rèiteachadh agus nach eil dad ann as urrainn dhut-sa a dhèanamh airson a chur ceart. ’S urrainn dhut fios a chur gu rianaire na làraich-lìn mun duilgheadas ge-tà.