Let's look at another question. Omi is having a birthday party. It starts at quarter past 4 and finishes 2 hours later. What time does Omi's party finish? Let's use a digital clock to add on 2 hours.

Physicists have created an atomic clock that relies on a fundamental link between time and mass. The researchers, at the University of California, Berkeley, say that the pulse of the clock is ...

Daylight saving time or Eastern Standard time? It’s long past time to end pointless clock-shifting (Editorial) Published: Nov. 02, 2020, 10:40 a.m.