Accretion time necessary to form a massive star in the OHC in the high fragmentation scenario. The blue line corresponds to the time needed to form the stellar seeds of 1 M_⊙ via subcore accretion. We have used the expressions from Krumholz et al. (2012) for the accretion rate. The red line corresponds to the accretion time needed to reach the final mass M, using Eq. (2). The volume- and surface densities used are ρ = 1.95 × 10^-16 g cm^-3 and Σ = 12 g cm^-2.