63 Man Makers 20:00

Partitioned as 1 the first minute, 2 the second minute, and so on up to 6 (1-2-3-4-5-6=21)
Then 1 minute rest
Then 1 through 6 (1-2-3-4-5-6=21)
Then 1 minute rest
Then 1 through 6 (1-2-3-4-5-6=21)

Total of 63
20:00

152 ahr

181c