Time

123456
Across
  1. 2. the last light in the sky just after sunset.
  2. 3. between midnight and noon
  3. 5. the middle of the day
  4. 6. from sunset to sunrise
Down
  1. 1. from noon to evening
  2. 2. the first appearance of light in the sky before sunrise
  3. 3. the middle of the night
  4. 4. at the end of the day usually bedtime