No one knows exactly what that ... time. "with" the time that remains. Specific examples will be over. 22 time to value for money, but if we have to, then the result is that we have to do our best.
No one knows that ... some time ago "to" remaining time. As well as it should have therefore spent a good value. But if we do, then the result will be considered we do best.
Nobody knows... The past time "and" the time remaining, where there will be more. So take your time. But if we do, then the outcome will be. It is considered. We did our best.