You will get a signal (long or short) at 12utc, and some corsses will appear to sel Stop Loss and Take Profit (green for the long positions and red for the short ones). After one hour the crosses will become lines, and if none of them will be hit, you will have to close manually from 11 to 12 utc of the day after.
This strategy closes the position at 11utc, but feel free to close it even a few seconds before 12utc, so you will watch this chart only once per day.