Once you've chosen a trail to hike on your jungle expedition, it is important to determine the day's sunset time. Subtract at least one hour from that time and plan to return from your jungle tour to the trailhead by then.
Remember, sunset times change throughout the year giving you less daylight hours in winter months. Always give yourself a good cushion of time - a margin for error - in case something happens. Set a turn-around time - and stick to it. You don't want to get stuck in a foreign jungle overnight.