How quickly could reserve warships return to service?

How quickly could Royal Navy frigates and other ships in reserve be recommissioned during an emergency?

It would depend on each ship's condition, access to a suitable yard, necessary repairs or upgrades, and the ability to assemble a crew from reservists and recently discharged sailors.

No single reactivation timetable fits the whole reserve fleet. A ship first has to reach a suitable facility and undergo repairs for deterioration suffered while laid up. Any urgent upgrades compete with the need to return the hull quickly. Crewing is an equal constraint, likely drawing on reservists, recent veterans, and older personnel whose experience still matches the ship. Britain also retained a long recall tail: someone called up at eighteen in 1945 would be about fifty-three in 1980 and could still contribute experience even if not returning to the same duties.