Plans are underway to make Te Awhina, Whanganui Hospital's mental health ward, smoke-free by the end of June.
The ward began the transition to go smoke-free on April 18, and has seven weeks to complete the process before June 27.
Tobacco control co-ordinator for the Public Health Centre, Rosie McMenamin, said the choice of day was to inspire change in the ward.
"We have chosen June 27 to align with Matariki and to strengthen the message around positive change," McMenamin said.
Te Awhina was on track to reach the smoke-free goal, McMeniman said, and staff were about to undertake training to understand the importance of the change.