The cold open to the sixth-season episode "" sees Harry Kim and Tom Paris attempting to guess Tuvok's age; they incorrectly guess at 162 and 133 respectively. Later that season, in the episode "", Kathryn Janeway discovers Tuvok's birthday and tells him, "It's not long before you hit the big three digits"; this suggests that he is under 100 at the time of the episode; however, in the sixth-season finale, "Unimatrix Zero", Tuvok states that he was born on stardate 38774 (equivalent to the year 2264) on Vulcanis, a lunar colony belonging to the Vulcan people. The episode is set in the year 2376, which would make Tuvok 112 years old at the time.