The government has selected 16 councils to develop its wraparound childcare delivery plans for parents of primary school aged children in England.
The scheme would see all parents of children in this age group able to access childcare in their local area between the hours of 08:00 and 18:00.
The Department for Education (DfE) said the rollout would begin next summer.
Education Secretary Gillian Keegan said the plans would be "transformational for working families".
The DfE said all councils in England would receive their share of £289m in funding to deliver the provision from January 2024.
Some of the 16 local authority areas selected to first work with the government on its plans are expected to be the first to rollout the wraparound care from next summer, before the scheme is expanded to further councils from September 2024.
Laura Mayes, children's services lead at Wiltshire Council - one of the council's picked to trial the wraparound childcare - said she was "very pleased" the council would be playing a part in the pilot scheme.