How many hours of studio time did The Beatles spend on 'Strawberry Fields Forever'?

About 55 hours — an absurd amount for a single song in 1966, when most albums were recorded in a day or two. The Beatles spent nearly two months on it, recording dozens of takes, and the final version splices two different recordings (different keys and tempos) together because John couldn’t decide. George Martin slowed one and sped the other to match, giving it a slightly woozy sound. For context, the entire Please Please Me album took under 13 hours.