Romulan calendar

• Units
  • Ewa (Romulan second) (ENT Novel: The Good That Men Do)
  • Siure (Romulan minute) (ENT Novel: The Good That Men Do)
  • Dierha (Romulan hour) (ENT Novel: The Good That Men Do)
  • Eisae (Romulan day) (ENT Novel: The Good That Men Do)
  • Khaidoa (Romulan month) (ENT Novel: The Good That Men Do)
  • Fvheisn (Romulan year) (ENT Novel: The Good That Men Do)
• Months
  • Tasmeen (ENT Novel: The Good That Men Do)
    • At least twenty-one days
  • Havreen (ENT Novel: The Good That Men Do)
    • At least eight days
    • Immediately follows Tasmeen
• 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)
  • February 9, 2155 = Tasmeen 21, year unknown (ENT Novel: The Good That Men Do)
  • March 5, 2155 = Havreen 8, year unknown (ENT Novel: The Good That Men Do)