Diastasis healing times vary by person and depend on two things: the depth and width of the diastasis, and how effectively you implement your Tummy Team program tools. Most Tummy Team clients with a 3-4 finger gap or less can close their diastasis and initiate the functional core strength rebuilding in about 3 months of intentional functional core rehab.
There are other factors that can influence healing such as sleep, nutrition, chronic parenting postures, and hormones.