person-day

[ pur-suh n-dey ]
/ ˈpɜr sənˌdeɪ /

noun

a unit of measurement, especially in accountancy, based on an ideal amount of work done by one person in one working day.

Origin of person-day

First recorded in 1965–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019