[LEAPSECS] "China move could call time on GMT"

Warner Losh imp at bsdimp.com
Wed Jan 4 14:58:14 EST 2012



On Jan 4, 2012, at 12:45 PM, Tony Finch wrote:


> Steve Allen <sla at ucolick.org> wrote:

>>

>> Happy New Year!

>>

>> How did I tell that it became the new year?

>> By the civil calendar date changing from Dec 31 to Jan 1.

>> How did I tell when the civil calendar date changed?

>> By looking at my clock set using UTC, which is, at present, connected

>> to the rotation of the earth, and thus to days.

>> The draft revision of ITU-R TF.460 removes the connection between UTC

>> and the rotation of the earth,

>

> Correct up to this point.

>

>> thus disconnecting the civil calendar date from the sun.

>

> Incorrect, because the civil calendar is tied to local solar time using

> the time zone system. Local civil time is not going to move out of sync

> with the sun, and therefore the calendar will also remain in sync.


Do people have a notion how we'll recon time when the accumulated delta becomes large (like on the order of 100k seconds)? UTC+27?

Warner


More information about the LEAPSECS mailing list