Set a turnaround time

Summary

This pattern is for walkers, climbers, paddlers and anyone heading towards a goal in the outdoors. It describes setting a fixed time to turn back before you start, and sticking to it.

Recommendation	Why?
Decide your turnaround time before you set out, not on the trail.	A calm decision at home is better than one made while tired, cold or excited about the view.
Work back from sunset, leaving the return time plus at least an hour of spare daylight.	Delays happen, and finding the way and footing in the dark is slow and risky.
Base the return time on your group’s actual pace, not the guidebook time.	Guidebook times assume fit walkers in good conditions, and the slowest person sets the group’s speed.
Turn back at that time, however close the goal is.	The goal will still be there next time, and most trouble happens when people push on.
Allow plenty for the descent.	Going down is often as slow as going up on steep ground, and tired legs make slips and falls more likely.
Turn back earlier if the weather changes or someone is struggling.	The turnaround time is the latest you’ll turn, not a target to reach.
Tell everyone the time and who’s watching the clock.	When the group agrees in advance, nobody has to argue about it on the trail.

Context

This pattern suits day walks, summit attempts, out-and-back paddles, rides into remote areas and any trip with a fixed goal.

It does not suit loop routes where turning back isn’t shorter, or guided trips where a guide makes the call. On a loop, set checkpoints instead: if you haven’t reached a point by a set time, take the planned shortcut or exit.

There’s a trade-off between reaching the goal and keeping a safety margin. A strict turnaround time means you’ll sometimes turn back when you could have made it. This pattern chooses the margin, because the cost of being wrong is much higher on the way down than on the way up. Experienced groups with good gear and a clear forecast may set a later time, but should still set one.

Usage

Planning: find the sunset time and estimate the return leg from your pace on similar trips. Count back from sunset, subtract a spare hour, and that’s your turnaround time. Write it in your trip plan so the person at home knows when to expect you.

On the way: check progress against the clock at obvious points such as junctions or huts. If you’re falling behind, expect to turn early.

At the turnaround: stop, eat, add a layer before you cool down (see Dress in layers), and head back. Take a photo of where you got to; it makes the next attempt easier to plan.

References

Your national or state parks authority, alpine clubs and search-and-rescue organisations give advice on trip planning and daylight. Check an official source for local sunset times and weather forecasts.