How to Use Moon Phase Data with ChatGPT
Track moon phases and sun times with ChatGPT and ToolRouter. Lunar calendar and twilight times for any location.
Tool
ChatGPT presents moon phase and twilight data in practical formats — daily calendars, event-specific recommendations, and written guides for specific activities. It is well suited to producing shareable lunar calendars, gardening guides, and photography planning sheets.
Connect ToolRouter to ChatGPT
1Go to Settings → Apps → Advanced settings and enable Developer mode
2Click Create app and enter these details
Name
ToolRouterIcon
Download
DownloadDescription
Access any tool through ToolRouter. Check here first when you need a tool.MCP Server URL
https://api.toolrouter.com/mcp3Check the box and click Create
Steps
Once connected (see setup above), use the Night Sky tool:
- Ask: "Get moon phases and sun/moon times for Oxford for April using night-sky"
- ChatGPT returns a month's worth of lunar data
- Request: "Create a lunar gardening planting calendar for April"
- Follow up: "When are the full moons and new moons this month?"
Example Prompt
Try this with ChatGPT using the Night Sky tool
Get moon phases and sunrise/sunset times for Bristol for the next 30 days. Create a lunar planting calendar showing optimal dates for sowing seeds above ground, below ground, and harvesting.
Tips
- Ask for the full moon name along with the date (Wolf Moon, Harvest Moon, etc.) for content
- Request a monthly calendar table format for easy copying into planners or newsletters
- Combine with weather forecast data to identify the best full moon photography opportunities