pimutils/khal

[Request] Support more calendar systems

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#774 opened on Apr 21, 2018

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 (3 comments) (1 reaction) (0 assignees)Python (2,349 stars) (191 forks)batch import
help wantedlv: hardpri:Lowtype: enhancement

Description

Hi,

I would be glad if khal would not only support the Gregorian calendar, but other calendar systems too. For me the Hebrew calendar[1] would be interesting as it also defines some official civil Israeli dates (e.g. Jom haAtzma'ut).

But there are other calendar systems too that may be of interest for many other people (e.g. the Chinese calendar[2]). Wikipedia has an overview of calendar systems[3].

Regards, abelbabel

[1] https://en.wikipedia.org/wiki/Hebrew_calendar [2] https://en.wikipedia.org/wiki/Chinese_calendar [3] https://en.wikipedia.org/wiki/Calendar#Calendars_in_use

Contributor guide

Tech stack
python
Domain
cli
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Pythondate handling librariescalendar conversion
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
Examine khal's date handling code in the repository to understand current implementation (likely using Python's datetime and pytz). Research calendar conversion libraries such as 'convertdate' or 'hdate'. Propose a design for adding alternative calendars, starting with one (e.g., Hebrew) as a proof of concept. Review any existing PRs or discussions for guidance.