Time Libraries Rough Draft

Scott Turner p.turner at computer.org
Thu Feb 10 10:24:10 EST 2005

On 2005 February 10 Thursday 06:36, Ashley Yakeley wrote:
> I see a calendar as something that maps UTCTime to other structures.
UTCTime should have a distinctive place in the library, because it covers a 
broad range of time scales and is almost supported by OSes. But it's as much 
a calendar as any other structure. A calendar is a system that handles 
arithmetic on days and/or years and related time periods. IMO, since 1960 or 
so when the second became divorced from the year, seconds could also be 
considered a calendar property.

From this point of view, mapping to and from UTCTime is a conversion between 

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