The Gathering Ramirez told Connor "You must learn to conceal your special gift,
and harness your power (pause) until the time of the Gathering... When only a few of us are left, we will feel an irresistible pull towards a far away land,
to fight for the Prize... We must fight until only one remains..." During the movie, we assume that the Gathering lasted only a few weeks,
at most a few months. But, in the TV series premiere, we are told that the Gathering has begun and, in the second season premiere,
we are told that Connor killed the Kurgan eight years ago. So presumably the Gathering will last several years, or at least as long as the TV series.