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.IX Title "DM_ZDUMP 1"
.TH DM_ZDUMP 1 2025-12-14 "perl v5.42.0" "User Contributed Perl Documentation"
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.SH NAME
dm_zdump \- timezone dumper
.SH SYNOPSIS
.IX Header "SYNOPSIS"
This performs the same operation as the unix \*(Aqzdump\*(Aq command, but using
the Date::Manip module.
.PP
.Vb 1
\&   dm_zdump [\-v] [\-c YEAR] [ZONE ZONE ...]
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
This displays the current time in each ZONE named on the command line
unless the \-v option is given.
.IP "\-h, \-\-help" 4
.IX Item "-h, --help"
Print online help.
.IP "\-v, \-\-verbose" 4
.IX Item "-v, --verbose"
This displays all critical dates (i.e. the times when a time change
occurs due to the timezone description) for each of the timezones
listed (or the local timezone if none are listed).
.Sp
Each critical date is printed as two lines of output: the last second
before the change occurs, and the first second of the new time.
.Sp
By default, all critical dates from Jan 1, 0001 until the year 20 years
in the future are printed, but this can be changed with the \-c option.
.IP "\-c, \-\-cutoff YEAR" 4
.IX Item "-c, --cutoff YEAR"
This specifies the cutoff year. All critical dates up to the start of
YEAR are given. The GMT time Jan 01, YEAR at 00:00:00 is the cutoff
time.
.SH "KNOWN BUGS"
.IX Header "KNOWN BUGS"
None known.
.SH "BUGS AND QUESTIONS"
.IX Header "BUGS AND QUESTIONS"
Please refer to the Date::Manip::Problems documentation for
information on submitting bug reports or questions to the author.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Date::Manip::Date
.SH LICENSE
.IX Header "LICENSE"
This script is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
.SH AUTHOR
.IX Header "AUTHOR"
Sullivan Beck (sbeck@cpan.org)