diff --git a/models/issue_tracked_time.go b/models/issue_tracked_time.go
index b1c82b620..3b2360f68 100644
--- a/models/issue_tracked_time.go
+++ b/models/issue_tracked_time.go
@@ -7,6 +7,8 @@ package models
 import (
 	"time"
 
+	api "code.gitea.io/sdk/gitea"
+
 	"github.com/go-xorm/builder"
 )
 
@@ -25,6 +27,17 @@ func (t *TrackedTime) AfterLoad() {
 	t.Created = time.Unix(t.CreatedUnix, 0).Local()
 }
 
+// APIFormat converts TrackedTime to API format
+func (t *TrackedTime) APIFormat() *api.TrackedTime {
+	return &api.TrackedTime{
+		ID:      t.ID,
+		IssueID: t.IssueID,
+		UserID:  t.UserID,
+		Time:    t.Time,
+		Created: t.Created,
+	}
+}
+
 // FindTrackedTimesOptions represent the filters for tracked times. If an ID is 0 it will be ignored.
 type FindTrackedTimesOptions struct {
 	IssueID      int64
diff --git a/routers/api/v1/repo/issue_tracked_time.go b/routers/api/v1/repo/issue_tracked_time.go
index 964fc11dd..3962a7b0e 100644
--- a/routers/api/v1/repo/issue_tracked_time.go
+++ b/routers/api/v1/repo/issue_tracked_time.go
@@ -10,6 +10,14 @@ import (
 	api "code.gitea.io/sdk/gitea"
 )
 
+func trackedTimesToAPIFormat(trackedTimes []*models.TrackedTime) []*api.TrackedTime {
+	apiTrackedTimes := make([]*api.TrackedTime, len(trackedTimes))
+	for i, trackedTime := range trackedTimes {
+		apiTrackedTimes[i] = trackedTime.APIFormat()
+	}
+	return apiTrackedTimes
+}
+
 // ListTrackedTimes list all the tracked times of an issue
 func ListTrackedTimes(ctx *context.APIContext) {
 	// swagger:route GET /repos/{username}/{reponame}/issues/{issue}/times repository issueTrackedTimes
@@ -35,11 +43,13 @@ func ListTrackedTimes(ctx *context.APIContext) {
 		return
 	}
 
-	if trackedTimes, err := models.GetTrackedTimes(models.FindTrackedTimesOptions{IssueID: issue.ID}); err != nil {
+	trackedTimes, err := models.GetTrackedTimes(models.FindTrackedTimesOptions{IssueID: issue.ID})
+	if err != nil {
 		ctx.Error(500, "GetTrackedTimesByIssue", err)
-	} else {
-		ctx.JSON(200, &trackedTimes)
+		return
 	}
+	apiTrackedTimes := trackedTimesToAPIFormat(trackedTimes)
+	ctx.JSON(200, &apiTrackedTimes)
 }
 
 // AddTime adds time manual to the given issue
@@ -73,13 +83,12 @@ func AddTime(ctx *context.APIContext, form api.AddTimeOption) {
 		ctx.Status(403)
 		return
 	}
-	var tt *models.TrackedTime
-	if tt, err = models.AddTime(ctx.User, issue, form.Time); err != nil {
+	trackedTime, err := models.AddTime(ctx.User, issue, form.Time)
+	if err != nil {
 		ctx.Error(500, "AddTime", err)
 		return
 	}
-	ctx.JSON(200, tt)
-
+	ctx.JSON(200, trackedTime.APIFormat())
 }
 
 // ListTrackedTimesByUser  lists all tracked times of the user
@@ -111,11 +120,15 @@ func ListTrackedTimesByUser(ctx *context.APIContext) {
 		ctx.Status(404)
 		return
 	}
-	if trackedTimes, err := models.GetTrackedTimes(models.FindTrackedTimesOptions{UserID: user.ID, RepositoryID: ctx.Repo.Repository.ID}); err != nil {
+	trackedTimes, err := models.GetTrackedTimes(models.FindTrackedTimesOptions{
+		UserID:       user.ID,
+		RepositoryID: ctx.Repo.Repository.ID})
+	if err != nil {
 		ctx.Error(500, "GetTrackedTimesByUser", err)
-	} else {
-		ctx.JSON(200, &trackedTimes)
+		return
 	}
+	apiTrackedTimes := trackedTimesToAPIFormat(trackedTimes)
+	ctx.JSON(200, &apiTrackedTimes)
 }
 
 // ListTrackedTimesByRepository lists all tracked times of the user
@@ -133,11 +146,14 @@ func ListTrackedTimesByRepository(ctx *context.APIContext) {
 		ctx.JSON(400, struct{ Message string }{Message: "time tracking disabled"})
 		return
 	}
-	if trackedTimes, err := models.GetTrackedTimes(models.FindTrackedTimesOptions{RepositoryID: ctx.Repo.Repository.ID}); err != nil {
+	trackedTimes, err := models.GetTrackedTimes(models.FindTrackedTimesOptions{
+		RepositoryID: ctx.Repo.Repository.ID})
+	if err != nil {
 		ctx.Error(500, "GetTrackedTimesByUser", err)
-	} else {
-		ctx.JSON(200, &trackedTimes)
+		return
 	}
+	apiTrackedTimes := trackedTimesToAPIFormat(trackedTimes)
+	ctx.JSON(200, &apiTrackedTimes)
 }
 
 // ListMyTrackedTimes lists all tracked times of the current user
@@ -150,9 +166,11 @@ func ListMyTrackedTimes(ctx *context.APIContext) {
 	//     Responses:
 	//       200: TrackedTimes
 	//       500: error
-	if trackedTimes, err := models.GetTrackedTimes(models.FindTrackedTimesOptions{UserID: ctx.User.ID}); err != nil {
+	trackedTimes, err := models.GetTrackedTimes(models.FindTrackedTimesOptions{UserID: ctx.User.ID})
+	if err != nil {
 		ctx.Error(500, "GetTrackedTimesByUser", err)
-	} else {
-		ctx.JSON(200, &trackedTimes)
+		return
 	}
+	apiTrackedTimes := trackedTimesToAPIFormat(trackedTimes)
+	ctx.JSON(200, &apiTrackedTimes)
 }