Have you ever needed to instantly find out what time it is in Tokyo, Paris or Sydney? Perhaps you are on an important business call, you want to catch up with family or you are simply watching a live ...

TOKYO: Japan on Wednesday put the world's most accurate clock which resembles a squat ... more accurate than caesium atomic clocks, the current standard for defining seconds, the precision ...

TOKYO, Japan — Resembling a squat, wide fridge, the world's most ... optical lattice clock," it is 100 times more accurate than caesium atomic clocks, the current standard for defining seconds ...