A senior U.S.official acknowledges the clock is ticking on showing the effectiveness of America's multibillion dollar attempt to rebuild Afghanistan.

VOA: standard.2009.09.04

but she has not had the best of luck in the romance department and, with her biological clock ticking away, she has decided the "right guy" may never show up.

VOA: standard.2010.04.30

It is a ticking time bomb for the federal budget.

VOA: standard.2009.06.15