For All Stars Cricket sessions, You have 2 options available: either a 45-minute session or a 60-minute session.
Normally a 45-minute session would be more suitable for Centres/Clubs with smaller numbers or Centres/Clubs that do not wish to have long breaks.
A 60-minute session would be more suitable for larger numbers allowing easier transition between activities/games within the session.
Ultimately the choice is yours.
If you're looking for Dynamos Cricket Session length recommendations, please see our separate article on this. https://allstarscricket.zendesk.com/hc/en-us/articles/360004518197-How-long-should-a-Dynamos-Cricket-session-take-