Travel must begin within three days of the reservation.

Breeding begins within 10 to 14 days of reaching the adult stage.

Both groups began the study within ten days of the initial stroke.

They begin producing eggs within 60-65 days of being swallowed.

The two sides must begin talks within 30 days.

We want the attack to begin immediately, within the next two or three days.

The 50 states say they have $1.8 billion of highway plans that could be begun within 30 days.

It said the move could begin within four days.

A trial must begin within 70 days, the law says.

The company promised to begin operations within 90 days.