The phrase "H.T." or "H.Time" is commonly used in military terminology to refer to a specific point in time, usually related to an event or operation. It stands for "Hours and Minutes," indicating the exact time when something is scheduled to happen or did happen. For example, if a mission was planned to take place at 14:30 H.T., it would mean that the mission was set to start at 2:30 PM in civilian time.