it is important to note that time travel is currently considered speculative and hypothetical within the realm of scientific understanding. While it has been explored in works of fiction and is a popular concept in movies and literature, no scientific evidence or widely accepted theories currently support the existence of practical time travel.
If time travel were to become possible in the future, it would likely have significant implications for society, and it's conceivable that governments or scientific institutions would be interested in researching and understanding its implications. Nevertheless, the specific knowledge and actions of governments regarding time travel remain speculative and hypothetical at this time.