This integer, ranging 1 to 900 seconds, reports how much of the current 15-minute Far-End Line-layer error-measurement period has elapsed. An admin cares because it's the denominator for judging how representative the current far-end counters are of a full interval, same as the near-end equivalent but specifically for remote-side statistics. For example, a far-end ES spike appearing at only 100 seconds into the interval flags a fast-onset remote-side problem rather than a slow accumulation.