README

A TinyMCE editor plugin that lets a user insert a date and time in their own timezone, wrapped in a <span> tagged with that timezone. The companion Timezone text filter (filter_timezone) reads this markup and converts it to the viewing user's own timezone wherever the content is displayed.

Adds an "Insert date/time with timezone" button (and matching Insert-menu item) to the TinyMCE toolbar. Clicking it opens a dialogue with a date/time picker and a timezone selector populated from Moodle's own list of IANA timezones, then inserts:

<span class="filter_timezone" data-timestamp="1782277200" data-timezone="Asia/Tokyo">
  2026-06-24 14:00 (Asia/Tokyo)
</span>

The visible text always includes the timezone in parentheses, so the date/time remains unambiguous even if filter_timezone is not installed or is disabled — that text is the only thing anyone sees in that case.

Clicking the button again with the cursor inside an existing span edits that span in place rather than inserting a duplicate.

Requirements

Moodle 5.0 or later (CI-tested on Moodle 5.1 and 5.2)
PHP 8.2 or later
The editor_tiny subsystem (TinyMCE editor, included with Moodle core)

Installation

From GitHub: Download the ZIP, extract into lib/editor/tiny/plugins/timezone/, then log in as admin and go to Site Administration → Notifications to run the database upgrade.

Pair it with the filter_timezone plugin to have inserted date/times actually convert for viewers; without it, the inserted text is still shown but never converted.

Setup

No configuration is required. Any user with the tiny/timezone:use capability (allowed for all users by default) will see the toolbar button in any TinyMCE editor.

Privacy

This plugin does not store any personal data.

Compatibility

Moodle	PHP	Status
5.2	8.3, 8.4	✓ CI
5.1	8.2, 8.3, 8.4	✓ CI

CI runs on PostgreSQL and MariaDB for all combinations above.

License

GNU GPL v3 or later — see http://www.gnu.org/copyleft/gpl.html

adamjenkins / moodle-tiny_timezone

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