How much time can I allow for injuries, heat and a try's conversion, and when does a half end?

Question

Accepted Answer

Under World Rugby Laws 2026 (Law 5):

A match lasts no longer than 80 minutes (two halves of not more than 40 minutes plus time lost). In non-international matches the match organiser may shorten it; if the organiser does not decide, the teams agree, and if they cannot agree you decide.
Half-time is an interval not exceeding 15 minutes, as decided by the match organiser.
You may stop play and allow time for a player injury for up to one minute (more if a player is seriously injured), and for consultation with other officials.
When the ball is already dead you may allow time for replacements, repairing clothing, re-tying a boot-lace and retrieving the ball.
In exceptionally hot or humid conditions you may allow a two-minute water break, midway through the half, after a score or when the ball is dead near halfway.
A half ends when the ball becomes dead after time has expired, unless a scrum, lineout or restart kick awarded before time expired is incomplete, you award a free-kick or penalty, or a try has been scored (then time is allowed for the conversion).
You may end or suspend the match at any time if you believe it would be unsafe to continue.