After inoculation the logs are stacked in shade and kept from drying. This spawn run is measured in months, not weeks.
Here the honest position matters: the Indian documents used for this course give a full incubation figure for synthetic blocks, not for logs. So do not take a number on trust. Measure your own yard: log weight at stacking, the date, shade, watering, and the first sign of white mycelium at the cut ends.