Round

A round (or combat round) is a period of time in an encounter where a character is commonly limited to a short amount of actions, e.g. attempt to attack an opponent, cast a single spell. The order of play depends on who has initiative in each round and how long their action will take to execute. As such, a round may be made up of individual segments which are solely used to determine the order of play.

The length of a round differs between different versions of Dungeons and Dragons.

• D&D 1e: ???
  
• D&D 2e: 1 minute (10 Rounds = 1 Turn)
  
• D&D 3e: 6 seconds (cf. D20 Combat Round, D20 Full-Round Actions)
  
• D&D 4e: 6 seconds?
  

Birthright also has domain rounds which are used for domain actions.