Circle Time - or Circle of Friends - is a chance for a group of children and adults to sit together and have a group discussion.
It is widely used in the UK and USA as a chance to come together and share your feelings and thoughts in a safe space. Some schools use it for restorative approaches or in response to bullying situations. You can read more about the impact of Circle of Friends in the DfE research from 2011 into Effectice Anti-Bullying Strategies.
Restorative Thinking have created a short video about it:
Department for Education 2011
TES article (paid for)