diff --git a/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn.Test/GrpcServices/TimePlanningSettingsGrpcServiceTests.cs b/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn.Test/GrpcServices/TimePlanningSettingsGrpcServiceTests.cs
index 977c35777..6a1375ca0 100644
--- a/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn.Test/GrpcServices/TimePlanningSettingsGrpcServiceTests.cs
+++ b/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn.Test/GrpcServices/TimePlanningSettingsGrpcServiceTests.cs
@@ -49,6 +49,7 @@ public async Task GetRegistrationSitesByCurrentUser_Success_MapsSitesToGrpcRespo
                 FourthShiftActive = false,
                 FifthShiftActive = true,
                 SnapshotEnabled = false,
+                UseOneMinuteIntervals = true,
                 Resigned = false,
                 ResignedAtDate = DateTime.SpecifyKind(DateTime.MinValue, DateTimeKind.Utc),
                 AvatarUrl = "https://example.com/avatar1.png",
@@ -74,6 +75,7 @@ public async Task GetRegistrationSitesByCurrentUser_Success_MapsSitesToGrpcRespo
                 FourthShiftActive = true,
                 FifthShiftActive = false,
                 SnapshotEnabled = true,
+                UseOneMinuteIntervals = false,
                 Resigned = true,
                 ResignedAtDate = new DateTime(2024, 1, 1, 0, 0, 0, DateTimeKind.Utc),
                 AvatarUrl = "https://example.com/avatar2.png",
@@ -113,6 +115,7 @@ public async Task GetRegistrationSitesByCurrentUser_Success_MapsSitesToGrpcRespo
         Assert.That(site1.FourthShiftActive, Is.False);
         Assert.That(site1.FifthShiftActive, Is.True);
         Assert.That(site1.SnapshotEnabled, Is.False);
+        Assert.That(site1.UseOneMinuteIntervals, Is.True);
         Assert.That(site1.Resigned, Is.False);
         Assert.That(site1.AvatarUrl, Is.EqualTo("https://example.com/avatar1.png"));
         Assert.That(site1.PhoneNumber, Is.EqualTo("+4512345678"));
@@ -136,6 +139,7 @@ public async Task GetRegistrationSitesByCurrentUser_Success_MapsSitesToGrpcRespo
         Assert.That(site2.FourthShiftActive, Is.True);
         Assert.That(site2.FifthShiftActive, Is.False);
         Assert.That(site2.SnapshotEnabled, Is.True);
+        Assert.That(site2.UseOneMinuteIntervals, Is.False);
         Assert.That(site2.Resigned, Is.True);
         Assert.That(site2.AvatarUrl, Is.EqualTo("https://example.com/avatar2.png"));
         Assert.That(site2.PhoneNumber, Is.EqualTo("+4587654321"));
diff --git a/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Infrastructure/Models/Settings/Site.cs b/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Infrastructure/Models/Settings/Site.cs
index 0fda8cf62..0c8369058 100644
--- a/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Infrastructure/Models/Settings/Site.cs
+++ b/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Infrastructure/Models/Settings/Site.cs
@@ -28,4 +28,5 @@ public class Site
 
     public DateTime ResignedAtDate { get; set; }
     public string? PhoneNumber { get; set; }
+    public bool UseOneMinuteIntervals { get; set; }
 }
\ No newline at end of file
diff --git a/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Protos/settings.proto b/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Protos/settings.proto
index 976a4773f..608dc8d41 100644
--- a/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Protos/settings.proto
+++ b/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Protos/settings.proto
@@ -236,6 +236,7 @@ message Site {
   bool resigned = 20;
   google.protobuf.Timestamp resigned_at_date = 21;
   string phone_number = 22;
+  bool use_one_minute_intervals = 23;
 }
 
 // Response wrappers matching C# OperationDataResult<T>
diff --git a/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Services/GrpcServices/TimePlanningSettingsGrpcService.cs b/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Services/GrpcServices/TimePlanningSettingsGrpcService.cs
index e0809558e..fa9d84560 100644
--- a/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Services/GrpcServices/TimePlanningSettingsGrpcService.cs
+++ b/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Services/GrpcServices/TimePlanningSettingsGrpcService.cs
@@ -266,6 +266,7 @@ public override async Task<GetRegistrationSitesResponse> GetRegistrationSites(
                     ResignedAtDate = Timestamp.FromDateTime(
                         DateTime.SpecifyKind(site.ResignedAtDate, DateTimeKind.Utc)),
                     PhoneNumber = site.PhoneNumber ?? "",
+                    UseOneMinuteIntervals = site.UseOneMinuteIntervals,
                 };
                 response.Model.Add(grpcSite);
             }
@@ -318,6 +319,7 @@ public override async Task<GetRegistrationSitesResponse> GetRegistrationSitesByC
                     ResignedAtDate = Timestamp.FromDateTime(
                         DateTime.SpecifyKind(site.ResignedAtDate, DateTimeKind.Utc)),
                     PhoneNumber = site.PhoneNumber ?? "",
+                    UseOneMinuteIntervals = site.UseOneMinuteIntervals,
                 };
                 response.Model.Add(grpcSite);
             }
diff --git a/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Services/TimePlanningSettingService/TimeSettingService.cs b/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Services/TimePlanningSettingService/TimeSettingService.cs
index bbf557779..642a589e0 100644
--- a/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Services/TimePlanningSettingService/TimeSettingService.cs
+++ b/eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn/Services/TimePlanningSettingService/TimeSettingService.cs
@@ -311,7 +311,8 @@ planRegistrationForToday is
                             FifthShiftActive = assignedSite.FifthShiftActive,
                             Resigned = assignedSite.Resigned,
                             ResignedAtDate = assignedSite.ResignedAtDate,
-                            SnapshotEnabled = assignedSite.SnapshotEnabled
+                            SnapshotEnabled = assignedSite.SnapshotEnabled,
+                            UseOneMinuteIntervals = assignedSite.UseOneMinuteIntervals
                         };
                         var workerEmail = (worker.Email ?? "").Trim().ToLower();
                         var user = baseDbContext == null || string.IsNullOrEmpty(workerEmail) ? null : await baseDbContext.Users
@@ -617,7 +618,8 @@ planRegistrationForToday is
                             FifthShiftActive = assignedSite.FifthShiftActive,
                             Resigned = assignedSite.Resigned,
                             ResignedAtDate = assignedSite.ResignedAtDate,
-                            SnapshotEnabled = assignedSite.SnapshotEnabled
+                            SnapshotEnabled = assignedSite.SnapshotEnabled,
+                            UseOneMinuteIntervals = assignedSite.UseOneMinuteIntervals
                         };
                         var workerEmail = (worker.Email ?? "").Trim().ToLower();
                         var user = baseDbContext == null || string.IsNullOrEmpty(workerEmail) ? null : await baseDbContext.Users
@@ -892,6 +894,7 @@ planRegistrationForToday is
                             FifthShiftActive = assignedSite.FifthShiftActive,
                             Resigned = assignedSite.Resigned,
                             ResignedAtDate = assignedSite.ResignedAtDate,
+                            UseOneMinuteIntervals = assignedSite.UseOneMinuteIntervals,
                         };
                         var workerEmail = (worker.Email ?? "").Trim().ToLower();
                         var user = baseDbContext == null || string.IsNullOrEmpty(workerEmail) ? null : await baseDbContext.Users