Privacy Policy

Last Updated: February 19, 2026 Plugin Name: DateTime Tool Version: 0.0.1 Author: cazziwork

Overview

This privacy policy describes how the DateTime Tool plugin handles data within your Dify instance. We are committed to protecting your privacy and ensuring transparency about our data practices.

Data Collection and Processing

What Data Does This Plugin Access?

The DateTime Tool plugin processes data that you explicitly provide to it through Dify workflows:

Date Strings: Date values passed to the tools in YYYY-MM-DD or ISO 8601 format
Format Patterns: Format strings used for date formatting
Parameters: Tool parameters such as timezone, unit, amount, and edge values

How Is Data Processed?

Local Processing: All date calculation and formatting occurs locally within your Dify instance
In-Memory Processing: Data is processed in memory and is not persisted to disk by the plugin itself
External Holiday Data: The date_check_holiday_jp and date_add (business days mode) tools fetch Japanese public holiday data from the official Japanese Cabinet Office website (https://www8.cao.go.jp/chosei/shukujitsu/syukujitsu.csv). This data is cached locally in /tmp/dify_holiday_jp_cache.csv with a 24-hour TTL.

Data Storage

Holiday Cache: Holiday data is temporarily cached at /tmp/dify_holiday_jp_cache.csv for performance. This cache contains only the official public holiday list published by the Japanese government — no user data is stored.
No Other Persistent Storage: The plugin does not store, cache, or persist any of the date or parameter data it processes.
Dify-Managed Storage: Any logging or persistence beyond the holiday cache is handled by the Dify platform according to your Dify configuration.

Data Sharing

Holiday Data Source: The plugin fetches public holiday data from the Japanese Cabinet Office (https://www8.cao.go.jp/chosei/shukujitsu/syukujitsu.csv). This is a one-way fetch of publicly available government data — no user data is sent to this server.
No Other Third-Party Sharing: The plugin does not share any user data with third parties.
No Analytics: We do not collect analytics, usage statistics, or telemetry data.
No User Tracking: The plugin does not track users or their behavior.

Security

Security Measures

Sandboxed Execution: The plugin runs within Dify's plugin sandbox environment
Limited Permissions: The plugin only processes the input data provided to it
Input Validation: Date strings and format patterns are validated before processing
Controlled External Access: The only external network request is to fetch publicly available Japanese holiday data from the official government source

Best Practices for Users

Input Data: Avoid passing sensitive information as date strings or format patterns
Network Access: Ensure your Dify instance can reach https://www8.cao.go.jp for holiday data fetching
Access Control: Use Dify's built-in access controls to restrict who can use workflows containing this plugin

Data Retention

Holiday Cache: Cached for up to 24 hours in /tmp. This is a system temporary directory that is cleared on restart.
No User Data Retention: The plugin does not retain any user-provided data beyond the execution lifecycle.
Workflow Context: Data may be retained as part of Dify's workflow execution logs according to your Dify instance configuration.

User Rights

As a user of this plugin, you have the following rights:

Access: You can access all data that flows through the plugin via Dify's workflow logs
Control: You have full control over what data is passed to the plugin
Transparency: You can review the plugin's source code to understand exactly how data is processed

Compliance

GDPR Compliance

This plugin is designed to be GDPR-compliant:

Data Minimization: Only processes data explicitly provided by the user
Purpose Limitation: Data is used only for date calculation and formatting purposes
No Profiling: The plugin does not create user profiles or make automated decisions
User Control: Users have complete control over data processing

Other Regulations

The plugin's minimal-storage design makes it compatible with most data protection regulations including:

CCPA (California Consumer Privacy Act)
PIPEDA (Canadian Personal Information Protection and Electronic Documents Act)
Other regional data protection laws

Children's Privacy

This plugin is part of the Dify platform and is intended for business and professional use. It is not designed for or targeted at children under the age of 13.

Changes to This Privacy Policy

We may update this privacy policy from time to time. When we do:

The "Last Updated" date at the top of this document will be revised
Significant changes will be noted in the plugin's changelog

Open Source

This plugin's source code is available for review, allowing you to:

Verify the privacy practices described in this policy
Audit the code for security and privacy concerns
Understand exactly how your data is processed

Contact Information

For questions, concerns, or requests regarding this privacy policy or the plugin's data practices, please contact:

Author: cazziwork Issue Tracker: Please submit issues through the repository's issue tracker

Summary

In Plain English:

✅ Date calculations happen locally on your Dify instance
✅ No user data is sent to external servers
✅ The only external request is fetching the public Japanese holiday list from the government
✅ Holiday data is cached temporarily and contains no user information
✅ You have complete control over your data
✅ The code is open for you to review

What We DON'T Do:

❌ We don't collect personal information
❌ We don't send your date data to external servers
❌ We don't store user data after processing
❌ We don't track or analyze usage
❌ We don't share user data with third parties

This plugin is designed with privacy as a core principle. If you have any questions or concerns about how your data is handled, please don't hesitate to reach out.

DateTime Tool privacy policy