The listed running time of Metallica's 1991 album, The Black Album, is 62 minutes and 40 seconds. The album's infobox gives this total as 62:40.
That length covers the original standard edition's 12 tracks, including “Enter Sandman,” “Sad but True,” “The Unforgiven,” “Wherever I May Roam,” and “Nothing Else Matters.” The record is substantially longer than a typical single, but its songs were generally more concise than the extended compositions on ...And Justice for All.
The 62:40 figure applies to the original album sequence, not later deluxe editions. The 2021 expanded box set added demos, rough mixes, live recordings, and other archival material, so those editions have different total durations. The answer is a time measurement, not the number of tracks or the album's recording span.