Time Intervals

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Across
  1. 2. a period of four weeks
  2. 3. brief moment in time
  3. 6. a period of 10 years
  4. 7. a period of time equal to a twenty-fourth part of a day and night
Down
  1. 1. a period of seven days
  2. 2. a period of time equal to sixty seconds
  3. 4. the period of 365 days
  4. 5. a period of twenty-four hours