Costs: The perils of making a Calderbank offer without a time limit
Once proceedings have started, it is not correct to assume that all bets are off and it is too late to accept an offer (in all circumstances). In fact, offers that are not time-limited, not withdrawn, and not a Part 36 offer are open for acceptance during a hearing (and therefore capable of acceptance when a party is in the best possible position to know what a judge will order).