[LEAPSECS] GMT v. UTC

[Rob Seaman]

And yet googling  "greenwich mean time" returns 5,250,000 results (353,000,000 for "gmt" but an unknown number are false positives)  including many sites like:

	http://www.worldtimeserver.com/current_time_in_UTC.aspx

that equate UTC with GMT.  As well as things like:

	http://wwp.greenwichmeantime.com/

that perpetuate the brand as being actually tied to Greenwich and Britain in general.

Which is it?  Does GMT == UTC?  Or does it continue to mean what it says, mean solar time at Greenwich?  It can't be both in a post-leap second world.  That it was deprecated for various technical purposes (not, apparently, all) does not mean it doesn't remain widely used.

Rob
--
On Jan 4, 2012, at 10:49 AM, Tony Finch wrote:


> Rob Seaman <seaman at noao.edu> wrote:

>> 

>> It seems quite possible that the plan is similarly "to get rid of" GMT.

>> Indeed, how can GMT continue to have a coherent meaning afterwards?

> 

> GMT was discontinued decades ago and has not had a coherent meaning for

> even longer.

> 

> Tony.