He goes there each day for a bit of something before going on duty.

During the first week he went back on duty, she stayed with him all through each watch.

The place was packed with people getting ready to go on duty.

Ten to five this morning, they'd just gone on duty.

You'll have to go back on duty in three days.

You'll get in about ten minutes after I go on duty.

"How come she gets to go on duty while we're still both stuck down here?"

The reporter had gone on new duty during the afternoon.

Maybe it would be a good idea to take another few days before you go back on duty, he suggested to her.

I might have the chance to get an hour or so of sleep in an actual bed before going on duty again.