diff --git a/NRedisTimeSeries.Test/TestAPI/TestMRange.cs b/NRedisTimeSeries.Test/TestAPI/TestMRange.cs
index 687149f..d402c61 100644
--- a/NRedisTimeSeries.Test/TestAPI/TestMRange.cs
+++ b/NRedisTimeSeries.Test/TestAPI/TestMRange.cs
@@ -181,12 +181,12 @@ public void TestMRangeAlign()
                 new TimeSeriesTuple(50,1),
                 new TimeSeriesTuple(100,1)
             };
-            var results = db.TimeSeriesMRange("-", "+", new List<string> { "key=MRangeAlign" }, align: "-", aggregation: TsAggregation.Count, timeBucket: 10, count:3);
+            var results = db.TimeSeriesMRange(0, "+", new List<string> { "key=MRangeAlign" }, align: "-", aggregation: TsAggregation.Count, timeBucket: 10, count:3);
             Assert.Equal(1, results.Count);
             Assert.Equal(keys[0], results[0].key);
             Assert.Equal(expected, results[0].values);
-            results = db.TimeSeriesMRange("-", "+", new List<string> { "key=MRangeAlign" }, align: "+", aggregation: TsAggregation.Count, timeBucket: 10, count:1);
-            Assert.Equal(new TimeSeriesTuple(-3,1), results[0].values[0]);
+            results = db.TimeSeriesMRange(1, 500, new List<string> { "key=MRangeAlign" }, align: "+", aggregation: TsAggregation.Count, timeBucket: 10, count:1);
+            Assert.Equal(expected[1], results[0].values[0]);
         }
 
         [Fact]
diff --git a/NRedisTimeSeries.Test/TestAPI/TestMRangeAsync.cs b/NRedisTimeSeries.Test/TestAPI/TestMRangeAsync.cs
index cbd956a..7ebdbf1 100644
--- a/NRedisTimeSeries.Test/TestAPI/TestMRangeAsync.cs
+++ b/NRedisTimeSeries.Test/TestAPI/TestMRangeAsync.cs
@@ -184,12 +184,12 @@ public async Task TestMRangeAlign()
                 new TimeSeriesTuple(50,1),
                 new TimeSeriesTuple(100,1)
             };
-            var results = await db.TimeSeriesMRangeAsync("-", "+", new List<string> { $"{keys[0]}=value" }, align: "-", aggregation: TsAggregation.Count, timeBucket: 10, count:3);
+            var results = await db.TimeSeriesMRangeAsync(0, "+", new List<string> { $"{keys[0]}=value" }, align: "-", aggregation: TsAggregation.Count, timeBucket: 10, count:3);
             Assert.Equal(1, results.Count);
             Assert.Equal(keys[0], results[0].key);
             Assert.Equal(expected, results[0].values);
-            results = await db.TimeSeriesMRangeAsync("-", "+", new List<string> { $"{keys[0]}=value" }, align: "+", aggregation: TsAggregation.Count, timeBucket: 10, count:1);
-            Assert.Equal(new TimeSeriesTuple(-3,1), results[0].values[0]);
+            results = await db.TimeSeriesMRangeAsync(0, 500, new List<string> { $"{keys[0]}=value" }, align: "+", aggregation: TsAggregation.Count, timeBucket: 10, count:1);
+            Assert.Equal(expected[0], results[0].values[0]);
         }
 
         [Fact]
diff --git a/NRedisTimeSeries.Test/TestAPI/TestMRevRange.cs b/NRedisTimeSeries.Test/TestAPI/TestMRevRange.cs
index 1d5b72f..6b5107c 100644
--- a/NRedisTimeSeries.Test/TestAPI/TestMRevRange.cs
+++ b/NRedisTimeSeries.Test/TestAPI/TestMRevRange.cs
@@ -175,12 +175,12 @@ public void TestMRevRangeAlign()
                 new TimeSeriesTuple(400,1),
                 new TimeSeriesTuple(350,1)
             };
-            var results = db.TimeSeriesMRevRange("-", "+", new List<string> { $"{keys[0]}=value" }, align: "-", aggregation: TsAggregation.Count, timeBucket: 10, count:3);
+            var results = db.TimeSeriesMRevRange(0, "+", new List<string> { $"{keys[0]}=value" }, align: "-", aggregation: TsAggregation.Count, timeBucket: 10, count:3);
             Assert.Equal(1, results.Count);
             Assert.Equal(keys[0], results[0].key);
             Assert.Equal(expected, results[0].values);
-            results = db.TimeSeriesMRevRange("-", "+", new List<string> { $"{keys[0]}=value" }, align: "+", aggregation: TsAggregation.Count, timeBucket: 10, count:1);
-            Assert.Equal(new TimeSeriesTuple(450-3,1), results[0].values[0]);
+            results = db.TimeSeriesMRevRange(0, 500, new List<string> { $"{keys[0]}=value" }, align: "+", aggregation: TsAggregation.Count, timeBucket: 10, count:1);
+            Assert.Equal(expected[0], results[0].values[0]);
         }
 
         [Fact]
diff --git a/NRedisTimeSeries.Test/TestAPI/TestMRevRangeAsync.cs b/NRedisTimeSeries.Test/TestAPI/TestMRevRangeAsync.cs
index ebf3514..5105408 100644
--- a/NRedisTimeSeries.Test/TestAPI/TestMRevRangeAsync.cs
+++ b/NRedisTimeSeries.Test/TestAPI/TestMRevRangeAsync.cs
@@ -175,12 +175,12 @@ public async Task TestMRevRangeAlign()
                 new TimeSeriesTuple(400,1),
                 new TimeSeriesTuple(350,1)
             };
-            var results = await db.TimeSeriesMRevRangeAsync("-", "+", new List<string> { $"{keys[0]}=value" }, align: "-", aggregation: TsAggregation.Count, timeBucket: 10, count:3);
+            var results = await db.TimeSeriesMRevRangeAsync(0, "+", new List<string> { $"{keys[0]}=value" }, align: "-", aggregation: TsAggregation.Count, timeBucket: 10, count:3);
             Assert.Equal(1, results.Count);
             Assert.Equal(keys[0], results[0].key);
             Assert.Equal(expected, results[0].values);
-            results = await db.TimeSeriesMRevRangeAsync("-", "+", new List<string> { $"{keys[0]}=value" }, align: "+", aggregation: TsAggregation.Count, timeBucket: 10, count:1);
-            Assert.Equal(new TimeSeriesTuple(450-3,1), results[0].values[0]);
+            results = await db.TimeSeriesMRevRangeAsync(0, 500, new List<string> { $"{keys[0]}=value" }, align: "+", aggregation: TsAggregation.Count, timeBucket: 10, count:1);
+            Assert.Equal(expected[0], results[0].values[0]);
         }
 
         [Fact]