The Minister typically takes up or assumes office after being appointed by the head of government or head of state. However, exact dates may vary depending on the country and political system in question. It is important to keep in mind that the transition of power and the process of selecting a new Minister can be complex and may involve negotiations and deliberations.

In most democratic systems, the incoming Minister will undergo a period of transition, which may include meetings with advisors and receiving briefings on their new responsibilities. During this time, the outgoing Minister may still be in office until the official handover takes place.

In order to find out the exact date of when the Minister will take up his or her office, it is best to consult official government sources or reputable media outlets. These sources will have the most up-to-date and accurate information on the Minister's transition process. Additionally, you may also reach out to political experts or scholars who specialize in the particular country or system of government for further insights.