In case of refusal of one of the parents (in divorce) for the child to leave, or...?

During martial law, the consent of only one of the child's parents is sufficient.

If for some reason you need a court decision on the above issue, it may take three or more months, depending on whether the party in the case will appeal against such a decision.

In accordance with paragraph 3 of the Resolution of the CMU "On Approval of the Rules for Crossing the State Border by Citizens of Ukraine", the departure from Ukraine of citizens who have not reached the age of 16 is carried out with the consent of both parents (adoptive parents) (hereinafter - parents) and accompanied by them or accompanied by persons authorized by them who have reached the age of 18 at the time of departure from Ukraine, including accompanied by crew members of the aircraft on which they are traveling.

In the absence of the consent of one of the parents, the departure of a citizen of Ukraine who has not reached the age of 16 may be allowed abroad on the basis of a court decision.

An application for permission for a citizen of Ukraine who has not reached the age of 16 to travel abroad without the consent and accompaniment of one of the parents is submitted to the court in simplified civil proceedings in the district, district in cities, city and city-district courts under the defendant's registered place of residence or stay.