diff --git a/cmd/answer/main.go b/cmd/answer/main.go
index e9308442..da836a5d 100644
--- a/cmd/answer/main.go
+++ b/cmd/answer/main.go
@@ -3,10 +3,12 @@ package main
 import (
 	"os"
 	"path/filepath"
+	"time"
 
 	"github.com/answerdev/answer/internal/base/conf"
 	"github.com/answerdev/answer/internal/base/constant"
 	"github.com/answerdev/answer/internal/cli"
+	"github.com/answerdev/answer/internal/schema"
 	"github.com/gin-gonic/gin"
 	"github.com/segmentfault/pacman"
 	"github.com/segmentfault/pacman/contrib/conf/viper"
@@ -51,6 +53,7 @@ func runApp() {
 		panic(err)
 	}
 	constant.Version = Version
+	schema.AppStartTime = time.Now()
 
 	defer cleanup()
 	if err := app.Run(); err != nil {
diff --git a/internal/schema/dashboard_schema.go b/internal/schema/dashboard_schema.go
index bba29da1..2f5b3622 100644
--- a/internal/schema/dashboard_schema.go
+++ b/internal/schema/dashboard_schema.go
@@ -1,5 +1,9 @@
 package schema
 
+import "time"
+
+var AppStartTime time.Time
+
 type DashboardInfo struct {
 	QuestionCount         int64                `json:"question_count"`
 	AnswerCount           int64                `json:"answer_count"`
diff --git a/internal/service/dashboard/dashboard_service.go b/internal/service/dashboard/dashboard_service.go
index fda3d646..aa876507 100644
--- a/internal/service/dashboard/dashboard_service.go
+++ b/internal/service/dashboard/dashboard_service.go
@@ -3,8 +3,10 @@ package dashboard
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"io/ioutil"
 	"net/http"
+	"time"
 
 	"github.com/answerdev/answer/internal/base/constant"
 	"github.com/answerdev/answer/internal/base/reason"
@@ -124,7 +126,8 @@ func (ds *DashboardService) Statistical(ctx context.Context) (*schema.DashboardI
 	}
 	dashboardInfo.HTTPS = true
 	dashboardInfo.OccupyingStorageSpace = "1MB"
-	dashboardInfo.AppStartTime = "102"
+	startTime := time.Now().Unix() - schema.AppStartTime.Unix()
+	dashboardInfo.AppStartTime = fmt.Sprintf("%d", startTime)
 	dashboardInfo.TimeZone = siteInfoInterface.TimeZone
 	dashboardInfo.VersionInfo.Version = constant.Version
 	dashboardInfo.VersionInfo.RemoteVersion = ds.RemoteVersion(ctx)