diff --git a/client/internal/auth/qimei.go b/client/internal/auth/qimei.go
index 7685cb17..db5113e5 100644
--- a/client/internal/auth/qimei.go
+++ b/client/internal/auth/qimei.go
@@ -115,14 +115,7 @@ func genRandomPayloadByDevice(info *Device) map[string]any {
 		seed += int64(b)
 	}
 	fixedRand := rand.New(rand.NewSource(seed))
-	years := now.Year()
-	month := now.Month()
-	if month == 1 {
-		years--
-		month = 12
-	} else {
-		month--
-	}
+
 	reserved := map[string]string{
 		"harmony":    "0",
 		"clone":      "0",
@@ -130,7 +123,7 @@ func genRandomPayloadByDevice(info *Device) map[string]any {
 		"oz":         "UhYmelwouA+V2nPWbOvLTgN2/m8jwGB+yUB5v9tysQg=",
 		"oo":         "Xecjt+9S1+f8Pz2VLSxgpw==",
 		"kelong":     "0",
-		"uptimes":    time.Date(years, month, fixedRand.Intn(27)+1, fixedRand.Intn(60), fixedRand.Intn(60), fixedRand.Intn(60), fixedRand.Intn(1e9), now.Location()).Format("2006-01-02 15:04:05"),
+		"uptimes":    time.Unix(now.Unix()-fixedRand.Int63n(86400), 0).Format(time.DateTime),
 		"multiUser":  "0",
 		"bod":        string(info.Board),
 		"brd":        string(info.Brand),