A round in Turf is a period of four or five weeks - which in days gives either 28 or 35 game days.

A new round begins immediately after the previous round has been completed. This shift between rounds is always 12:00 Central European Time or Central European Summer Time (when applicable) on the first Sunday in every month.

When a new round starts all the zones in the game automatically become neutral.

More information about specific rounds can be read here: List of Rounds.