Through Copenhagen’s ornate Town Hall trooped a steady stream of sightseers last week to look at the workings of the world’s most complex astronomical clock. Set in motion shortly before ...

Results from the study, published in journal Science, suggest the newly-found button could be used to switch the master clock to a new time zone, for example from London to Beijing, in just one day.

“Our master brain clock (or biological clock), which tells us when to go to bed and awaken, when to eat and when to be active, is very sensitive to light,” explains Kenneth P. Wright Jr., Ph.D ...

This challenges and disproves the commonly held notion that circadian rhythms were strictly organized in a hierarchical manner, and that light resets the master clock in the SCN, which then ...

By comparing DSAC with the U.S. Naval Observatory’s hydrogen maser “master clock” on the ground, the researchers found that the space clock drifted about 26 picoseconds, or trillionths of a ...