In some cases, this change may take place between day and night.

The travel time can be between one hour and 30 days.

"But right now, the difference in cost between night and day are not that great."

"You cannot see the difference between day and night," he said.

The difference between day and night, an important consideration in most lives, seemed of little interest to him.

Be led by your baby's needs - gradually they learn the difference between night and day.

Over the years the race has lasted between 10 and 13 days at sea.

The span of the fast could be anything between a day and 30 days or even more.

In practice, this length of time is generally between 10-20 days.

But by the time he hit the ground the distinction between day and night was academic.