diff --git a/src/modules/record/interfaces/recordable.ts b/src/modules/record/interfaces/recordable.ts
index d98bbc8..66a9c8a 100644
--- a/src/modules/record/interfaces/recordable.ts
+++ b/src/modules/record/interfaces/recordable.ts
@@ -3,5 +3,5 @@ export interface Recordable {
   taskId: string
   start: Date
   end?: Date
-  stepRecords: Record<string, { minutes: number }>
+  stepRecords: Record<string, { start: Date; end?: Date }>
 }
diff --git a/src/modules/record/models/task-record.ts b/src/modules/record/models/task-record.ts
index e9e0e58..399e0f7 100644
--- a/src/modules/record/models/task-record.ts
+++ b/src/modules/record/models/task-record.ts
@@ -3,7 +3,7 @@ import type { Recordable } from '../interfaces/recordable'
 export class TaskRecord implements Recordable {
   public start: Date = new Date()
   public end: Date | undefined = undefined
-  public stepRecords: Record<string, { minutes: number }> = {}
+  public stepRecords: Record<string, { start: Date; end?: Date }> = {}
 
   public constructor(
     public readonly id: string,