If the fielding team fails to start the final over by the stipulated time for it to start, they will be docked one fielder from outside the 30-yard circle. So for the remainder of the innings, they will be allowed four, instead of five, fielders outside the 30-yard circle. The rule change applies to both men's and women's T20Is. According to the new rule, which was made public by the ICC on Friday, the fielding team needs to "be in position to bowl the first ball of the final over of the innings by the scheduled [or rescheduled in case of an unavoidable delay] cessation time for the innings".
Until now each team had 85 minutes to complete 20 overs. In the ICC's new playing conditions for T20Is, the fielding team needs to start the 20th over by the 85th minute. Match officials will tell both the fielding team and the batters the stipulated end time at the start of each innings. Any time lost due to injuries, DRS reviews, the ball being lost or any unforeseen incident that slows the game, will affect the end time which will be reworked.
The third umpire, through a timer. In case of any stoppages, the third umpire will rework the end time and let on-field officials know.
It will be implemented for the first time in the men's game during the one-off T20I between West Indies and Ireland on January 16.
It has. The ICC has essentially adopted an idea that the ECB brought in across its white-ball tournaments last year.
The final overs of any T20 innings are acknowledged as a significant segment of play. Losing a boundary fielder at that stage thus becomes potentially critical for the fielding side. It's not outlandish to think that it could, in some cases, become the difference between winning and losing - which could hurt teams more than simple monetary fines.
Nagraj Gollapudi is news editor at ESPNcricinfo