The phrase “it’s just a matter of time” means that something is expected to happen eventually, but the exact timing is uncertain. It implies that while there may be delays or obstacles, the outcome is inevitable. This expression is often used to suggest that patience is required and that one should expect a particular event or change to occur sooner or later. For example, if someone says, “It’s just a matter of time before they find a solution to the problem,” they mean that they believe a solution will eventually be discovered, even if it hasn’t happened yet.