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@@ -1,17 +1,6 @@
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@node Date input formats
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@chapter Date input formats
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-@c Copyright 1994, 1995, 1996, 1997, 1999, 2000, 2001 Free Software
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-@c Foundation, Inc.
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-
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-@c Permission is granted to copy, distribute and/or modify this document
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-@c under the terms of the GNU Free Documentation License, Version 1.1
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-@c or any later version published by the Free Software Foundation;
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-@c with no Invariant Sections, with no
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-@c Front-Cover Texts, and with no Back-Cover Texts.
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-@c A copy of the license is included in the section entitled ``GNU
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-@c Free Documentation License''.
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-
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@cindex date input formats
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@findex getdate
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@@ -46,13 +35,13 @@ programs accept. These are the strings you, as a user, can supply as
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arguments to the various programs. The C interface (via the
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@code{getdate} function) is not described here.
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-@cindex beginning of time, for @sc{posix}
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-@cindex epoch, for @sc{posix}
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+@cindex beginning of time, for @acronym{POSIX}
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+@cindex epoch, for @acronym{POSIX}
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Although the date syntax here can represent any possible time since the
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year zero, computer integers often cannot represent such a wide range of
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-time. On @sc{posix} systems, the clock starts at 1970-01-01 00:00:00
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-@sc{utc}: @sc{posix} does not require support for times before the
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-@sc{posix} Epoch and times far in the future. Traditional Unix systems
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+time. On @acronym{POSIX} systems, the clock starts at 1970-01-01 00:00:00
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+@sc{utc}: @acronym{POSIX} does not require support for times before the
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+@acronym{POSIX} Epoch and times far in the future. Traditional Unix systems
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have 32-bit signed @code{time_t} and can represent times from 1901-12-13
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20:45:52 through 2038-01-19 03:14:07 @sc{utc}. Systems with 64-bit
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signed @code{time_t} can represent all the times in the known
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Paul Eggert