GMB has announced the dates Northern Ireland health workers will take industrial action.
Members will strike on January 24 from 00:01 to 20:00, followed by continuous action short of strike from January 25.
In a ballot for industrial action, more than 92% voted to strike action and action short of strike action.
Thousands of healthcare workers across Northern Ireland are staging strike action on Friday today over pay and staffing levels.
Jim Donley, GMB Organiser, said:
“It’s with a heavy heart our members go on strike – but they are angry about they way they have been treated.
“It’s now time for the politicians to deliver on their promises.
“They must step up to the plate to end the unfairness in pay and staff shortages across all disciplines.”