Time Lightan operates as a sentient robotic defender within the Lightan Corps, dedicated to shielding Earth from extraterrestrial dangers. Its core functionality centers on temporal manipulation, allowing it to shift into a compact timer device that halts time for up to 30 seconds—a critical tactical asset in battles, albeit restricted by the brief duration and its comparatively modest hand-to-hand combat capabilities.

Debuting as the 1981 GB-40 toy, the robot initially featured a gold-colored design, later adopting a silver appearance in animated adaptations. Engineered for teamwork, Time Lightan can merge with fellow Lightan units to assemble advanced composite machines, amplifying collective power for offense or defense. Though documented narratives lack elaboration on its personal history or extended universe expansions, the character steadfastly fulfills a support-oriented role, emphasizing strategic utility over solo engagements within the group dynamic.