Reflective Gear Calculator — Running Visibility Check
Check if you need reflective gear based on your running time and time of year.
How We Calculate This
UK Daylight Hours
This calculator uses approximate UK sunrise and sunset times for each month (based on central England):
It checks whether your run start and end times fall outside daylight hours, including a 30-minute buffer either side of sunrise/sunset for twilight conditions.
Any run time in darkness triggers a reflective gear recommendation, with more extensive gear for longer dark periods.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always consult a coach or medical professional for personalised training advice.