diff --git a/AsbCloudApp/Data/WellOperationDto.cs b/AsbCloudApp/Data/WellOperationDto.cs
index 35fa5007..765c021f 100644
--- a/AsbCloudApp/Data/WellOperationDto.cs
+++ b/AsbCloudApp/Data/WellOperationDto.cs
@@ -33,6 +33,11 @@ namespace AsbCloudApp.Data
         /// </summary>
         public double DepthEnd { get; set; }
 
+        /// <summary>
+        /// Кол-во дней от даты начала первой плановой (а если её нет, то фактической) операции
+        /// </summary>
+        public double Day { get; set; }
+
         /// <summary>
         /// Дата начала операции
         /// </summary>
diff --git a/AsbCloudInfrastructure/Services/WellOperationService/OperationsStatService.cs b/AsbCloudInfrastructure/Services/WellOperationService/OperationsStatService.cs
index 480aaebb..effeeae2 100644
--- a/AsbCloudInfrastructure/Services/WellOperationService/OperationsStatService.cs
+++ b/AsbCloudInfrastructure/Services/WellOperationService/OperationsStatService.cs
@@ -413,6 +413,8 @@ namespace AsbCloudInfrastructure.Services.WellOperationService
 
             var merged = MergeArraysBySections(sectionsIds, wellOperationsPlan, wellOperationsFact);
             var tvd = new List<PlanFactPredictBase<WellOperationDto>>(merged.Count);
+            var firstPoint = merged.First();
+            var dateStart = firstPoint.Item1?.DateStart ?? firstPoint.Item2.DateStart;
             int iLastMatch = 0;
             int iLastFact = 0;
             for (int i = 0; i < merged.Count; i++)
@@ -426,6 +428,12 @@ namespace AsbCloudInfrastructure.Services.WellOperationService
                     Predict = null,
                 };
 
+                if(planFactPredict.Plan is not null)
+                    planFactPredict.Plan.Day = (planFactPredict.Plan.DateStart - dateStart).TotalDays;
+
+                if (planFactPredict.Fact is not null)
+                    planFactPredict.Fact.Day = (planFactPredict.Fact.DateStart - dateStart).TotalDays;
+
                 tvd.Add(planFactPredict);
                 if ((item.Item1 is not null) && (item.Item2 is not null))
                     iLastMatch = i;
@@ -451,7 +459,9 @@ namespace AsbCloudInfrastructure.Services.WellOperationService
                 tvd[i].Predict = merged[i].Item1.Adapt<WellOperationDto>();
                 tvd[i].Predict.IdType = 2;
                 tvd[i].Predict.DateStart = tvd[i].Predict.DateStart + startOffset;
+                tvd[i].Predict.Day = (tvd[i].Predict.DateStart - dateStart).TotalDays;
             }
+
             return tvd;
         }