diff --git a/custom_components/localthings/registry/capabilities/operational.py b/custom_components/localthings/registry/capabilities/operational.py
index 99d853d..7a94b90 100644
--- a/custom_components/localthings/registry/capabilities/operational.py
+++ b/custom_components/localthings/registry/capabilities/operational.py
@@ -70,6 +70,34 @@ def _finish_time(remaining_str):
         return None
 
 
+def _parse_remaining_time(rep):
+    return (
+        rep.get('x.com.samsung.da.remainingTime')
+        or rep.get('remainingTime')
+    )
+
+
+def _completion_time(rep):
+    return _parse_remaining_time(rep)
+
+
+def _completion_minutes(rep):
+    raw = _parse_remaining_time(rep)
+    if not raw or not isinstance(raw, str):
+        return None
+    try:
+        parts = [int(p) for p in raw.split(':')]
+        if len(parts) == 3:
+            h, m, s = parts
+            return h * 60 + m + (1 if s > 0 else 0)
+        elif len(parts) == 2:
+            m, s = parts
+            return m + (1 if s > 0 else 0)
+    except (ValueError, TypeError):
+        pass
+    return None
+
+
 # Shared by dryer/dishwasher/oven/washer -- oven.py imports this directly
 # rather than keeping its own copy, since both wrote the identical
 # state='Ready' RMW.
@@ -123,6 +151,15 @@ OPERATIONAL_STATE = Capability(
                             or rep.get('x.com.samsung.da.progress') == 'Finish'
                        else _finish_time(rep.get('x.com.samsung.da.remainingTime'))
                    )),
+        SensorDesc(key='completion_time', name='Completion time',
+                   icon='mdi:timer-sand',
+                   exists_fn=lambda rep, resources: _completion_time(rep) is not None,
+                   rep_fn=_completion_time),
+        SensorDesc(key='completion_minutes', name='Remaining minutes',
+                   icon='mdi:clock-outline', unit='min',
+                   device_class='duration', state_class='measurement',
+                   exists_fn=lambda rep, resources: _completion_minutes(rep) is not None,
+                   rep_fn=_completion_minutes),
         NumberDesc(key='delay_start_hours', name='Delay start', icon='mdi:timer-plus-outline',
                    device_class='duration', unit='h',
                    native_min=0, native_max=24, step=1,
@@ -144,4 +181,4 @@ OPERATIONAL_STATE = Capability(
                        {'x.com.samsung.da.state': p})),
         STOP_BUTTON,
     ),
-)
+)
\ No newline at end of file
diff --git a/tests/test_operational_capability.py b/tests/test_operational_capability.py
index 992467f..3ac48fe 100644
--- a/tests/test_operational_capability.py
+++ b/tests/test_operational_capability.py
@@ -24,6 +24,39 @@ class TestProgressPercentage:
         assert desc.rep_fn(rep) == 42
 
 
+class TestCompletionTime:
+    """Unit tests for completion_time and completion_minutes entities."""
+
+    def test_completion_time_string(self):
+        desc = next(e for e in OPERATIONAL_STATE.entities if e.key == 'completion_time')
+        rep = {'x.com.samsung.da.remainingTime': '01:25:30'}
+        assert desc.rep_fn(rep) == '01:25:30'
+
+    def test_completion_time_fallback(self):
+        desc = next(e for e in OPERATIONAL_STATE.entities if e.key == 'completion_time')
+        rep = {'remainingTime': '00:45:00'}
+        assert desc.rep_fn(rep) == '00:45:00'
+
+    def test_completion_minutes_parsing(self):
+        desc = next(e for e in OPERATIONAL_STATE.entities if e.key == 'completion_minutes')
+        
+        # 1 hour 25 mins 30 secs -> 85 mins + 1 sec ceiling = 86 mins
+        rep = {'x.com.samsung.da.remainingTime': '01:25:30'}
+        assert desc.rep_fn(rep) == 86
+
+        # Exact minutes: 1 hour 30 mins 00 secs -> 90 mins
+        rep_exact = {'x.com.samsung.da.remainingTime': '01:30:00'}
+        assert desc.rep_fn(rep_exact) == 90
+
+    def test_completion_time_missing_or_invalid(self):
+        desc_time = next(e for e in OPERATIONAL_STATE.entities if e.key == 'completion_time')
+        desc_min = next(e for e in OPERATIONAL_STATE.entities if e.key == 'completion_minutes')
+        
+        rep = {}
+        assert desc_time.rep_fn(rep) is None
+        assert desc_min.rep_fn(rep) is None
+
+
 class TestDelayFieldFallback:
     def test_reads_delay_end_time_when_delay_start_time_absent(self):
         from custom_components.localthings.registry.capabilities.operational import OPERATIONAL_STATE
@@ -53,4 +86,4 @@ class TestDelayFieldFallback:
         desc = next(e for e in OPERATIONAL_STATE.entities if e.key == 'delay_start_hours')
         rep = {'x.com.samsung.da.delayStartTime': '00:00:00'}
         path, body = desc.write_fn(1.5, rep)
-        assert body == {'x.com.samsung.da.delayStartTime': '1:30:00'}
+        assert body == {'x.com.samsung.da.delayStartTime': '1:30:00'}
\ No newline at end of file