This is an expert advisor that will trail stop loss of orders selected from the list displayed on the chart.
To make it run, add the expert to an empty chart (please set it on a chart that is not in use for analysis or other trading purposes, you can minimize it when setting a new order trail timed stop loss is not required).
Set the number of pips to trail and the number of minutes to wait for the next stop loss review at the inputs tab in the Expert Properties window.
From the list displayed on the chart set to 1 those orders for which you want to keep the timer
Take into account that each time a new order is placed the time counter returns to zero and the time reckoning will start again.