datecalc - Date calculator
This document describes version 0.090 of datecalc (from Perl distribution App-datecalc), released on 2023-02-18.
% datecalc > today 2014-05-13#Tue > tomorrow 2014-05-14#Wed > today + 2 days 2014-05-15#Thu > 2014-05-13 - 2014-02-14 P2M3W6D > days(2014-05-13 - 2014-02-14) 4 > totdays(2014-05-13 - 2014-02-14) 88 > 2 months 3 weeks 6 days P2M3W6D > P10D P1W3D > 2014-05-13 + P2D 2014-05-15#Thu > 2 * 2 days 10 hours P4DT20H > P10D / 2 P5D > 6d + 8d + 13 min P2WT13M > month(today) 5 > days(P8D) 1 > weeks(P8D) 1 > P8D P1W1D
This is a command-line utility to perform date calculations.
For now, for more details, see App::datecalc.
For example:
> 2001-01-01 + P1.5M 2001-02-01#Thu
One would expect something closer to 2001-02-16. But this is how DateTime::Duration works. Instead of using fractions in larger units, try using smaller units instead. For example:
2001-02-16
> 2001-01-01 + P1M2W 2001-02-15#Thu
Please visit the project's homepage at https://metacpan.org/release/App-datecalc.
Source repository is at https://github.com/perlancar/perl-App-datecalc.
perlancar <perlancar@cpan.org>
To contribute, you can send patches by email/via RT, or send pull requests on GitHub.
Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via:
% prove -l
If you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me.
This software is copyright (c) 2023, 2018, 2016, 2015, 2014 by perlancar <perlancar@cpan.org>.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=App-datecalc
When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.
To install App::datecalc, copy and paste the appropriate command in to your terminal.
cpanm
cpanm App::datecalc
CPAN shell
perl -MCPAN -e shell install App::datecalc
For more information on module installation, please visit the detailed CPAN module installation guide.