Royal Navy wartime maintenance cycles

Did the Royal Navy have roughly the same eighteen-month maintenance cycle as the U.S. Navy in the Pacific War?

Roughly, but damage repairs, existing British port infrastructure, and theater differences made the practical cycle less uniform than a simple schedule.

Maintenance cycles were not purely calendar rules. Damage repairs often created opportunities to complete other work, so a ship that had not entered a formal major refit could still receive substantial upkeep during repeated repair visits. British operations in the Mediterranean and North Atlantic benefited from established dockyard infrastructure, making their practical rhythm less uniform than later Pacific deployments. Once Royal Navy forces entered Pacific conditions, the roughly eighteen-month cycle became more comparable to U.S. Navy practice.