28 days Annual Leave, plus Public Holidays, up to 8 years of service, then 30 days up to 10 years of service, then 33.
Also, some units have locally agreed working practice agreements that means they may have a few days time off in lieu per year.
At the 24 hour units, shift workers are on a 6 on, 4 off roster (technically the first day off is a sleep day, as you may be working until 0700 that morning), so to get 14 days off work, 6 days leave are used.
Most of the non-24 hour units work a 6 on 3 off pattern.