diff --git a/Covid19Radar/Covid19Radar/Services/SurveyService.cs b/Covid19Radar/Covid19Radar/Services/SurveyService.cs
index 5803ed7a4..03154fd4f 100644
--- a/Covid19Radar/Covid19Radar/Services/SurveyService.cs
+++ b/Covid19Radar/Covid19Radar/Services/SurveyService.cs
@@ -19,6 +19,8 @@ public interface ISurveyService
 
     public class SurveyService : ISurveyService
     {
+        private const long FromDateMillisEpoch = 1649289600000; // 2022/04/07 00:00:00 UTC
+
         private readonly IEventLogService _eventLogService;
         private readonly IExposureDataRepository _exposureDataRepository;
         private readonly IUserDataRepository _userDataRepository;
@@ -58,6 +60,7 @@ V1ExposureRiskCalculationConfiguration riskConfiguration
 
                 List<SurveyExposureData.DailySummary> dailySummaryList
                     = chinoDailySummaryList
+                    .Where(item => item.DateMillisSinceEpoch >= FromDateMillisEpoch)
                     .Select(
                         item => new SurveyExposureData.DailySummary
                         {
diff --git a/Covid19Radar/Tests/Covid19Radar.UnitTests/Services/SurveyServiceTests.cs b/Covid19Radar/Tests/Covid19Radar.UnitTests/Services/SurveyServiceTests.cs
index 88f2eff78..6994ddb25 100644
--- a/Covid19Radar/Tests/Covid19Radar.UnitTests/Services/SurveyServiceTests.cs
+++ b/Covid19Radar/Tests/Covid19Radar.UnitTests/Services/SurveyServiceTests.cs
@@ -59,7 +59,7 @@ public async Task BuildSurveyContentTests_HasStartDate_HasExposureDataProvision(
                 {
                     new DailySummary
                     {
-                        DateMillisSinceEpoch = 1640962800,
+                        DateMillisSinceEpoch = 1649289600000,
                         DaySummary = new ExposureSummaryData
                         {
                             MaximumScore = 1350.0
@@ -110,7 +110,7 @@ public async Task BuildSurveyContentTests_DailySummary()
                 {
                     new DailySummary
                     {
-                        DateMillisSinceEpoch = 1640962800,
+                        DateMillisSinceEpoch = 1649289600000,
                         DaySummary = new ExposureSummaryData
                         {
                             MaximumScore = 1350.0
@@ -118,7 +118,7 @@ public async Task BuildSurveyContentTests_DailySummary()
                     },
                     new DailySummary
                     {
-                        DateMillisSinceEpoch = 1640962801,
+                        DateMillisSinceEpoch = 1649376000000,
                         DaySummary = new ExposureSummaryData
                         {
                             MaximumScore = 1349.0
@@ -132,14 +132,50 @@ public async Task BuildSurveyContentTests_DailySummary()
 
             List<SurveyExposureData.DailySummary> dailySummaryList = result.ExposureData.DailySummaryList;
             Assert.Equal(2, dailySummaryList.Count);
-            Assert.Equal(1640962800, dailySummaryList[0].DateMillisSinceEpoch);
+            Assert.Equal(1649289600000, dailySummaryList[0].DateMillisSinceEpoch);
             Assert.Equal(1, dailySummaryList[0].ExposureDetected);
-            Assert.Equal(1640962801, dailySummaryList[1].DateMillisSinceEpoch);
+            Assert.Equal(1649376000000, dailySummaryList[1].DateMillisSinceEpoch);
             Assert.Equal(0, dailySummaryList[1].ExposureDetected);
 
             _mockExposureDataRepository.Verify(x => x.GetDailySummariesAsync(), Times.Once());
         }
 
+        [Fact]
+        public async Task BuildSurveyContentTests_DateMillisSinceEpochFilter()
+        {
+            _mockExposureDataRepository.Setup(x => x.GetDailySummariesAsync()).ReturnsAsync(
+                new List<DailySummary>
+                {
+                    new DailySummary
+                    {
+                        DateMillisSinceEpoch = 1649289599999, // 2022-04-06 23:59:59.999 UTC
+                        DaySummary = new ExposureSummaryData
+                        {
+                            MaximumScore = 1350.0
+                        }
+                    },
+                    new DailySummary
+                    {
+                        DateMillisSinceEpoch = 1649289600000, // 2022-04-07 00:00:00 UTC
+                        DaySummary = new ExposureSummaryData
+                        {
+                            MaximumScore = 1349.0
+                        }
+                    }
+                });
+            _mockUserDataRepository.Setup(x => x.GetStartDate()).Returns(new DateTime(2022, 1, 1, 0, 0, 0, DateTimeKind.Utc));
+
+            SurveyService unitUnderTest = CreateService();
+            SurveyContent result = await unitUnderTest.BuildSurveyContent(1, 2, true, true);
+
+            List<SurveyExposureData.DailySummary> dailySummaryList = result.ExposureData.DailySummaryList;
+            Assert.Single(dailySummaryList);
+            Assert.Equal(1649289600000, dailySummaryList[0].DateMillisSinceEpoch);
+            Assert.Equal(0, dailySummaryList[0].ExposureDetected);
+
+            _mockExposureDataRepository.Verify(x => x.GetDailySummariesAsync(), Times.Once());
+        }
+
         [Fact]
         public async Task SubmitSurveyTests()
         {