Tenets of time

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