  The last decade has seen an intense renewed debate on tunnelling time, both
from a theoretical and an experimental perspective. Here, we review recent
developments and new insights in the field of strong-field tunnel ionization
related to tunnelling time, and apply these findings to the interpretation of
the attoclock experiment [Landsman et al., Optica 1, 343 (2014)]. We conclude
that models including finite tunnelling time are consistent with recent
experimental measurements.
