[ntp:questions] Re: Guardian article

Harza nuns_island at hotmail.com
Wed Aug 13 20:30:08 UTC 2003

>From the "Network Time Protocol Timescale and Leap Seconds"

"The insertion of leap seconds into UTC is currently the
responsibility of the IERS, which is located at the Paris Observatory.
As specified in CCIR Report 517, a leap second is inserted following
second 23:59:59 on the last day of June or December and becomes second
23:59:60 of that day"

However, in The Guardian's article it states:

"...by asking clocks to change from 23:59,59 to 23:59,60 before going
on to 00:00,00. But as most clocks don't permit the number 60, they
show 23:59,59 for two seconds instead."

Is this true that most clocks don't permit the number 60?

>*The Guardian* has a fascinating story on the ITU's Study group
>with time.  According to the article, divergent time systems are an>>
>increasing problem. Conflicts between Earth time, the time provided
>atomic clocks, GPS time, and other standards raise interesting
>about the safety of aircraft and other complex systems that may be
>on different timescales.
>  http://www.guardian.co.uk/uk_news/story/0,3604,985020,00.html

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