The ECJ has confirmed that, when a worker increases their hours during the leave year, the statutory leave entitlement going forward must be recalculated based on the new increased hours, but any leave that has already accrued does not need to be recalculated retrospectively to take account of the increased hours. If the worker took more leave than was accrued prior to the change in hours, the excess can be deducted from the leave going forward. (Greenfield v The Care Bureau)