Romulan calendar

• Units
  • Ewa (Romulan second)
  • Dierha (Romulan hour)
  • Khaidoa (Romulan month)
  • Fvheisn (Romulan year)
• Months
  • Tasmeen (ENT Novel: The Good That Men Do)
    • At least eleven days
• Correspondences
  • Nearly three fvheisn between April 17, 2152 and early February 2155 (ENT Novel: The Good That Men Do)
    • Between "Minefield" and chapter 4 of The Good That Men Do
  • Tasmeen 5, year unknown > January 24, 2155 (ENT Novel: The Good That Men Do)
  • January 30, 2155 > Tasmeen 11, year unknown > February 3, 2155 (ENT Novel: The Good That Men Do)