Tenets of time

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Across
  1. 3. October
  2. 4. May
  3. 6. July
  4. 7. January
  5. 9. November
  6. 12. April
Down
  1. 1. February
  2. 2. September
  3. 5. June
  4. 8. March
  5. 10. August
  6. 11. December