diff --git a/models/issues/tracked_time.go b/models/issues/tracked_time.go
index 884a445d26..91c4832e49 100644
--- a/models/issues/tracked_time.go
+++ b/models/issues/tracked_time.go
@@ -340,7 +340,7 @@ func GetTrackedTimeByID(ctx context.Context, id int64) (*TrackedTime, error) {
 }
 
 // GetIssueTotalTrackedTime returns the total tracked time for issues by given conditions.
-func GetIssueTotalTrackedTime(ctx context.Context, opts *IssuesOptions, isClosed bool) (int64, error) {
+func GetIssueTotalTrackedTime(ctx context.Context, opts *IssuesOptions, isClosed util.OptionalBool) (int64, error) {
 	if len(opts.IssueIDs) <= MaxQueryParameters {
 		return getIssueTotalTrackedTimeChunk(ctx, opts, isClosed, opts.IssueIDs)
 	}
@@ -363,7 +363,7 @@ func GetIssueTotalTrackedTime(ctx context.Context, opts *IssuesOptions, isClosed
 	return accum, nil
 }
 
-func getIssueTotalTrackedTimeChunk(ctx context.Context, opts *IssuesOptions, isClosed bool, issueIDs []int64) (int64, error) {
+func getIssueTotalTrackedTimeChunk(ctx context.Context, opts *IssuesOptions, isClosed util.OptionalBool, issueIDs []int64) (int64, error) {
 	sumSession := func(opts *IssuesOptions, issueIDs []int64) *xorm.Session {
 		sess := db.GetEngine(ctx).
 			Table("tracked_time").
@@ -377,7 +377,9 @@ func getIssueTotalTrackedTimeChunk(ctx context.Context, opts *IssuesOptions, isC
 		Time int64
 	}
 
-	return sumSession(opts, issueIDs).
-		And("issue.is_closed = ?", isClosed).
-		SumInt(new(trackedTime), "tracked_time.time")
+	session := sumSession(opts, issueIDs)
+	if !isClosed.IsNone() {
+		session = session.And("issue.is_closed = ?", isClosed.IsTrue())
+	}
+	return session.SumInt(new(trackedTime), "tracked_time.time")
 }
diff --git a/models/issues/tracked_time_test.go b/models/issues/tracked_time_test.go
index 2774234e7b..9beb862ffb 100644
--- a/models/issues/tracked_time_test.go
+++ b/models/issues/tracked_time_test.go
@@ -11,6 +11,7 @@ import (
 	issues_model "code.gitea.io/gitea/models/issues"
 	"code.gitea.io/gitea/models/unittest"
 	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/util"
 
 	"github.com/stretchr/testify/assert"
 )
@@ -119,11 +120,15 @@ func TestTotalTimesForEachUser(t *testing.T) {
 func TestGetIssueTotalTrackedTime(t *testing.T) {
 	assert.NoError(t, unittest.PrepareTestDatabase())
 
-	ttt, err := issues_model.GetIssueTotalTrackedTime(db.DefaultContext, &issues_model.IssuesOptions{MilestoneIDs: []int64{1}}, false)
+	ttt, err := issues_model.GetIssueTotalTrackedTime(db.DefaultContext, &issues_model.IssuesOptions{MilestoneIDs: []int64{1}}, util.OptionalBoolFalse)
 	assert.NoError(t, err)
 	assert.EqualValues(t, 3682, ttt)
 
-	ttt, err = issues_model.GetIssueTotalTrackedTime(db.DefaultContext, &issues_model.IssuesOptions{MilestoneIDs: []int64{1}}, true)
+	ttt, err = issues_model.GetIssueTotalTrackedTime(db.DefaultContext, &issues_model.IssuesOptions{MilestoneIDs: []int64{1}}, util.OptionalBoolTrue)
 	assert.NoError(t, err)
 	assert.EqualValues(t, 0, ttt)
+
+	ttt, err = issues_model.GetIssueTotalTrackedTime(db.DefaultContext, &issues_model.IssuesOptions{MilestoneIDs: []int64{1}}, util.OptionalBoolNone)
+	assert.NoError(t, err)
+	assert.EqualValues(t, 3682, ttt)
 }
diff --git a/routers/web/repo/issue.go b/routers/web/repo/issue.go
index 0d660e3b89..c8c9924a9e 100644
--- a/routers/web/repo/issue.go
+++ b/routers/web/repo/issue.go
@@ -237,10 +237,18 @@ func issues(ctx *context.Context, milestoneID, projectID int64, isPullOption uti
 		}
 	}
 
-	isShowClosed := ctx.FormString("state") == "closed"
-	// if open issues are zero and close don't, use closed as default
+	var isShowClosed util.OptionalBool
+	switch ctx.FormString("state") {
+	case "closed":
+		isShowClosed = util.OptionalBoolTrue
+	case "all":
+		isShowClosed = util.OptionalBoolNone
+	default:
+		isShowClosed = util.OptionalBoolFalse
+	}
+	// if there are closed issues and no open issues, default to showing all issues
 	if len(ctx.FormString("state")) == 0 && issueStats.OpenCount == 0 && issueStats.ClosedCount != 0 {
-		isShowClosed = true
+		isShowClosed = util.OptionalBoolNone
 	}
 
 	if repo.IsTimetrackerEnabled(ctx) {
@@ -260,10 +268,13 @@ func issues(ctx *context.Context, milestoneID, projectID int64, isPullOption uti
 	}
 
 	var total int
-	if !isShowClosed {
-		total = int(issueStats.OpenCount)
-	} else {
+	switch isShowClosed {
+	case util.OptionalBoolTrue:
 		total = int(issueStats.ClosedCount)
+	case util.OptionalBoolNone:
+		total = int(issueStats.OpenCount + issueStats.ClosedCount)
+	default:
+		total = int(issueStats.OpenCount)
 	}
 	pager := context.NewPagination(total, setting.UI.IssuePagingNum, page, 5)
 
@@ -282,7 +293,7 @@ func issues(ctx *context.Context, milestoneID, projectID int64, isPullOption uti
 			ReviewedID:        reviewedID,
 			MilestoneIDs:      mileIDs,
 			ProjectID:         projectID,
-			IsClosed:          util.OptionalBoolOf(isShowClosed),
+			IsClosed:          isShowClosed,
 			IsPull:            isPullOption,
 			LabelIDs:          labelIDs,
 			SortType:          sortType,
@@ -428,6 +439,9 @@ func issues(ctx *context.Context, milestoneID, projectID int64, isPullOption uti
 	ctx.Data["OpenCount"] = issueStats.OpenCount
 	ctx.Data["ClosedCount"] = issueStats.ClosedCount
 	linkStr := "%s?q=%s&type=%s&sort=%s&state=%s&labels=%s&milestone=%d&project=%d&assignee=%d&poster=%d&archived=%t"
+	ctx.Data["AllStatesLink"] = fmt.Sprintf(linkStr, ctx.Link,
+		url.QueryEscape(keyword), url.QueryEscape(viewType), url.QueryEscape(sortType), "all", url.QueryEscape(selectLabels),
+		mentionedID, projectID, assigneeID, posterID, archived)
 	ctx.Data["OpenLink"] = fmt.Sprintf(linkStr, ctx.Link,
 		url.QueryEscape(keyword), url.QueryEscape(viewType), url.QueryEscape(sortType), "open", url.QueryEscape(selectLabels),
 		mentionedID, projectID, assigneeID, posterID, archived)
@@ -442,11 +456,13 @@ func issues(ctx *context.Context, milestoneID, projectID int64, isPullOption uti
 	ctx.Data["ProjectID"] = projectID
 	ctx.Data["AssigneeID"] = assigneeID
 	ctx.Data["PosterID"] = posterID
-	ctx.Data["IsShowClosed"] = isShowClosed
 	ctx.Data["Keyword"] = keyword
-	if isShowClosed {
+	switch isShowClosed {
+	case util.OptionalBoolTrue:
 		ctx.Data["State"] = "closed"
-	} else {
+	case util.OptionalBoolNone:
+		ctx.Data["State"] = "all"
+	default:
 		ctx.Data["State"] = "open"
 	}
 	ctx.Data["ShowArchivedLabels"] = archived
diff --git a/templates/repo/issue/openclose.tmpl b/templates/repo/issue/openclose.tmpl
index ff5ec3c5a5..38848c51ac 100644
--- a/templates/repo/issue/openclose.tmpl
+++ b/templates/repo/issue/openclose.tmpl
@@ -1,5 +1,5 @@
 <div class="small-menu-items ui compact tiny menu">
-	<a class="{{if not .IsShowClosed}}active {{end}}item" href="{{.OpenLink}}">
+	<a class="{{if eq .State "open"}}active {{end}}item" href="{{if eq .State "open"}}{{.AllStatesLink}}{{else}}{{.OpenLink}}{{end}}">
 		{{if .PageIsMilestones}}
 			{{svg "octicon-milestone" 16 "gt-mr-3"}}
 		{{else if .PageIsPullList}}
@@ -9,7 +9,7 @@
 		{{end}}
 		{{ctx.Locale.PrettyNumber .OpenCount}}&nbsp;{{ctx.Locale.Tr "repo.issues.open_title"}}
 	</a>
-	<a class="{{if .IsShowClosed}}active {{end}}item" href="{{.ClosedLink}}">
+	<a class="{{if eq .State "closed"}}active {{end}}item" href="{{if eq .State "closed"}}{{.AllStatesLink}}{{else}}{{.ClosedLink}}{{end}}">
 		{{svg "octicon-check" 16 "gt-mr-3"}}
 		{{ctx.Locale.PrettyNumber .ClosedCount}}&nbsp;{{ctx.Locale.Tr "repo.issues.closed_title"}}
 	</a>