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SCCS-file: tzfile.5
SCCS-SID: 8.1
This commit is contained in:
Arthur David Olson
2006-02-20 09:53:12 -05:00
committed by Paul Eggert
parent a318c1a0dc
commit f9b8f165e8
1 changed files with 13 additions and 1 deletions
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tzfile.5
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@ -9,7 +9,9 @@ The time zone information files used by
.IR tzset (3)
begin with the magic characters "TZif" to identify then as
time zone information files,
followed by sixteen bytes reserved for future use,
followed by a character identifying the version of the file's format
(as of 2005, either an ASCII NUL or a '2')
followed by fifteen bytes containing zeroes reserved for future use,
followed by six four-byte values of type
.BR long ,
written in a ``standard'' byte order
@ -131,6 +133,16 @@ if either
.I tzh_timecnt
is zero or the time argument is less than the first transition time recorded
in the file.
.PP
For version-2-format time zone files,
the above header and data is followed by a second header and data,
identical in format except that
eight bytes are used for each transition time or leap second time.
After the second header and data comes a newline-encloded,
POSIX-TZ-environment-variable-style string for use in handling instants
after the last transition time stored in the file
(with nothing between the newlines if there is no POSIX representation for
such instants).
.SH SEE ALSO
newctime(3)
.\" %W%