Aged-care workers have announced further strike action after four days of mediation talks failed.
About 1500 nurses and caregivers are seeking more pay from rest home operator Oceania.
The New Zealand Nurses Organisation and Service and Food Workers Union represent the workers.
Unions spokesman Alastair Duncan says the forth day of mediation saw no movement from Oceania.
The workers will strike on Wednesday from 5am to 9am, and 4pm until 6pm.
Staff had been waiting for a pay increase since June last year, he said.
Oceania has offered a 3 per cent rise for a two year agreement, and workers were worth more than that, Mr Duncan said.
Most of the workers were paid close to minimum wage.
Workers at 20 of Oceania's 59 retirement villages and rest homes took strike action for two hours last Thursday.
This week 21 facilities will strike.
Oceania says it does not receive enough government funding to pay what the unions are wanting.