---
title: ToolRouter — Use Case
description: Step-by-step guide for a real-world ToolRouter use case with agent-specific instructions.
url: https://toolrouter.com/tools/sunrise-sunset/use-cases/calculate-daylight-hours
---
# Calculate Daylight Hours

The length of the day varies dramatically by latitude and season. A December day in Stockholm has barely 6 hours of light while the same day in Sydney has over 14. This affects everything from work schedules and commute safety to agriculture and energy consumption.

Get sunrise and sunset times to calculate exact daylight duration for any location and date. Compare across seasons, track how day length changes week to week, or analyze daylight availability for locations at different latitudes.

**Tool:** [Sunrise Sunset](https://toolrouter.com/tools/sunrise-sunset)
**Skills:** times

## Agent Guides

- [How to Calculate Daylight Hours with Claude](https://toolrouter.com/tools/sunrise-sunset/use-cases/calculate-daylight-hours/claude): Guide for Claude
- [How to Calculate Daylight Hours with ChatGPT](https://toolrouter.com/tools/sunrise-sunset/use-cases/calculate-daylight-hours/chatgpt): Guide for ChatGPT
- [How to Calculate Daylight Hours with Copilot](https://toolrouter.com/tools/sunrise-sunset/use-cases/calculate-daylight-hours/copilot): Guide for Copilot
- [How to Calculate Daylight Hours with OpenClaw](https://toolrouter.com/tools/sunrise-sunset/use-cases/calculate-daylight-hours/openclaw): Guide for OpenClaw
