Postgresql 7.0 bug

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                        POSTGRESQL BUG REPORT TEMPLATE
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Your name        : Eric Prevost-Dansereau
Your email address    : eric@esc.rosemere.qc.ca


System Configuration
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  Architecture (example: Intel Pentium)      : Intel Pentium II

  Operating System (example: Linux 2.0.26 ELF)     : Linux 2.2.13 ELF

  PostgreSQL version (example: PostgreSQL-6.5.1):  PostgreSQL-7.0

  Compiler used (example:  gcc 2.8.0)        : gcc 2.91.66


Please enter a FULL description of your problem:
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When I execute from psql:
    SELECT '2000-04-03'::timestamp - '2000-04-02'::timestamp;

I get:
     ?column?
    ----------
     23:00
    (1 row)

Why april 2nd, 2000 don't last 1 day (or 24 hours) ?






Please describe a way to repeat the problem.   Please try to provide a
concise reproducible example, if at all possible:
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SELECT '2000-04-03'::timestamp - '2000-04-02'::timestamp;




If you know how this problem might be fixed, list the solution below:
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I don't have any idea