Official material describes portions of the process in terms of weeks, which is a description rather than a commitment. Vetting length, document requests, interview scheduling and visa availability all affect an individual case. Plan on milestones you control — submission dates and document readiness — and avoid promising an employer or a landlord a specific arrival month.
Sequence the parts you can control
Passport renewals, civil documents, translations and medical appointments all sit within an applicant's own control and can be finished while other stages are pending. Do those first. Then treat each government step as an event with an unknown date but a known response requirement, and keep a person responsible for watching the portal and the correspondence address.
A missed request costs more time than any of the work it asks for. Finish first the things entirely within the household's control: passport renewals, civil documents, translations, and medical appointments can all be completed while other stages are pending. Then treat each government step as an event with an unknown date but a known response requirement, and give one named person responsibility for watching the portal and the correspondence address, since a missed request costs more time than any of the work it asks for.
Official material describing portions of the process in weeks is a description rather than a commitment, and vetting length, document requests, interview scheduling, and visa availability all affect an individual case. Avoid promising anyone a specific arrival month.