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From: "M. A. Alves" <maa@liacc.up.pt>
Newsgroups: comp.lang.ada
Subject: Re: FILETIME <-> Ada.Real_Time.Time conversions
Date: Thu, 20 Dec 2001 11:27:33 +0000 (GMT)
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Date: 2001-12-20T11:27:33+00:00

On Wed, 19 Dec 2001, Steve Doiel wrote:
> . . . it may not be possible (read probably isn't) to represent all
> values of FILETIME as a Ada.Real_Time.Time . . .

Indeed:

         | Range                               | Delta              |
         |-------------------------------------|--------------------|
FILETIME | 1600-01-01 .. (very distant future) | 100 nanoseconds    |
Ada Time | 1901-01-01 .. 2100-12-2099          | 20 miliseconds (*) |

(*) "Shall" spec. "Should" is 100 microseconds.

It definitely not possible to timestamp medieval objects with Ada Time ;-)

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