The time

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Across
  1. 1. something who is used to learn time
  2. 2. the etymology of friday
  3. 4. when the sun is rising
  4. 7. they are 24 in a day
  5. 8. the thing who use shadow to learn time
  6. 9. the middle of the night
  7. 11. the moment between sunrise to noon
Down
  1. 1. a water clock
  2. 3. from sunrise to sunset
  3. 5. when the sun is setting
  4. 6. the etymology of monday
  5. 10. the first instrument for mesuring time