Since we're a morning paper, your shift will begin at four in the afternoon and end around dawn.

But the shift began earlier and was far more gradual.

By the year 2000, a shift had begun to take place among the faculty and staff.

On some days, he grabbed a few more hours of sleep in the afternoon just before his shift began.

His shift began at 0700, which was 1200 or 1300 in western Europe.

Now that those phases are over, the shift is beginning.

For now, the only thing certain is that a shift has begun.

After a successful launch, a second shift began to work.

"Now will you get out there and come back when your shift begins."

Each of these is 6 hours long and if a shift begins in their time slot, a group has to work it.