diff --git a/database/model/model.go b/database/model/model.go
index 5685460..396a1bd 100644
--- a/database/model/model.go
+++ b/database/model/model.go
@@ -35,6 +35,14 @@ type Client struct {
 	Up       int64           `json:"up" form:"up"`
 	Desc     string          `json:"desc" form:"desc"`
 	Group    string          `json:"group" form:"group"`
+
+	// Delay start and periodic reset
+	DelayStart bool  `json:"delayStart" form:"delayStart" gorm:"default:false;not null"`
+	AutoReset  bool  `json:"autoReset" form:"autoReset" gorm:"default:false;not null"`
+	ResetDays  int   `json:"resetDays" form:"resetDays" gorm:"default:0;not null"`
+	NextReset  int64 `json:"nextReset" form:"nextReset" gorm:"default:0;not null"`
+	TotalUp    int64 `json:"totalUp" form:"totalUp" gorm:"default:0;not null"`
+	TotalDown  int64 `json:"totalDown" form:"totalDown" gorm:"default:0;not null"`
 }
 
 type Stats struct {
diff --git a/service/client.go b/service/client.go
index 034cba4..8fc9b90 100644
--- a/service/client.go
+++ b/service/client.go
@@ -38,7 +38,9 @@ func (s *ClientService) getById(id string) (*[]model.Client, error) {
 func (s *ClientService) GetAll() (*[]model.Client, error) {
 	db := database.GetDB()
 	var clients []model.Client
-	err := db.Model(model.Client{}).Select("`id`, `enable`, `name`, `desc`, `group`, `inbounds`, `up`, `down`, `volume`, `expiry`").Scan(&clients).Error
+	err := db.Model(model.Client{}).
+		Select("`id`, `enable`, `name`, `desc`, `group`, `inbounds`, `up`, `down`, `volume`, `expiry`").
+		Scan(&clients).Error
 	if err != nil {
 		return nil, err
 	}
@@ -369,24 +371,34 @@ func (s *ClientService) DepleteClients() ([]uint, error) {
 	var users []string
 	var inboundIds []uint
 
-	now := time.Now().Unix()
+	dt := time.Now().Unix()
 	db := database.GetDB()
 
 	tx := db.Begin()
 	defer func() {
 		if err == nil {
 			tx.Commit()
+			_, err1 := db.Raw("PRAGMA wal_checkpoint(FULL)").Rows()
+			if err1 != nil {
+				logger.Error("Error checkpointing WAL: ", err1.Error())
+			}
 		} else {
 			tx.Rollback()
 		}
 	}()
 
-	err = tx.Model(model.Client{}).Where("enable = true AND ((volume >0 AND up+down > volume) OR (expiry > 0 AND expiry < ?))", now).Scan(&clients).Error
+	// Reset clients
+	inboundIds, err = s.ResetClients(tx, dt)
+	if err != nil {
+		return nil, err
+	}
+
+	// Deplete clients
+	err = tx.Model(model.Client{}).Where("enable = true AND ((volume >0 AND up+down > volume) OR (expiry > 0 AND expiry < ?))", dt).Scan(&clients).Error
 	if err != nil {
 		return nil, err
 	}
 
-	dt := time.Now().Unix()
 	for _, client := range clients {
 		logger.Debug("Client ", client.Name, " is going to be disabled")
 		users = append(users, client.Name)
@@ -405,7 +417,7 @@ func (s *ClientService) DepleteClients() ([]uint, error) {
 
 	// Save changes
 	if len(changes) > 0 {
-		err = tx.Model(model.Client{}).Where("enable = true AND ((volume >0 AND up+down > volume) OR (expiry > 0 AND expiry < ?))", now).Update("enable", false).Error
+		err = tx.Model(model.Client{}).Where("enable = true AND ((volume >0 AND up+down > volume) OR (expiry > 0 AND expiry < ?))", dt).Update("enable", false).Error
 		if err != nil {
 			return nil, err
 		}
@@ -419,6 +431,89 @@ func (s *ClientService) DepleteClients() ([]uint, error) {
 	return inboundIds, nil
 }
 
+func (s *ClientService) ResetClients(tx *gorm.DB, dt int64) ([]uint, error) {
+	var err error
+	var resetClients, allClients []*model.Client
+	var changes []model.Changes
+	var inboundIds []uint
+	// Set delay start without periodic reset
+	err = tx.Model(model.Client{}).
+		Where("enable = true AND delay_start = true AND auto_reset = false AND (Up + Down) > 0").Find(&resetClients).Error
+	if err != nil {
+		return nil, err
+	}
+	for _, client := range resetClients {
+		client.Expiry = dt + (int64(client.ResetDays) * 86400)
+		client.DelayStart = false
+		changes = append(changes, model.Changes{
+			DateTime: dt,
+			Actor:    "ResetJob",
+			Key:      "clients",
+			Action:   "reset",
+			Obj:      json.RawMessage("\"" + client.Name + "\""),
+		})
+	}
+	allClients = append(allClients, resetClients...)
+
+	// Set delay start with periodic reset
+	err = tx.Model(model.Client{}).
+		Where("enable = true AND delay_start = true AND auto_reset = true AND (Up + Down) > 0").Find(&resetClients).Error
+	if err != nil {
+		return nil, err
+	}
+	for _, client := range resetClients {
+		client.NextReset = dt + (int64(client.ResetDays) * 86400)
+		client.DelayStart = false
+		changes = append(changes, model.Changes{
+			DateTime: dt,
+			Actor:    "ResetJob",
+			Key:      "clients",
+			Action:   "reset",
+			Obj:      json.RawMessage("\"" + client.Name + "\""),
+		})
+	}
+	allClients = append(allClients, resetClients...)
+
+	// Set periodic reset
+	err = tx.Model(model.Client{}).
+		Where("delay_start = false AND auto_reset = true AND next_reset < ?", dt).Find(&resetClients).Error
+	if err != nil {
+		return nil, err
+	}
+	for _, client := range resetClients {
+		client.NextReset = dt + (int64(client.ResetDays) * 86400)
+		client.TotalUp += client.Up
+		client.TotalDown += client.Down
+		client.Up = 0
+		client.Down = 0
+		if !client.Enable {
+			client.Enable = true
+			var clientInboundIds []uint
+			json.Unmarshal(client.Inbounds, &clientInboundIds)
+			inboundIds = common.UnionUintArray(inboundIds, clientInboundIds)
+		}
+	}
+	allClients = append(allClients, resetClients...)
+
+	// Save clients
+	if len(allClients) > 0 {
+		err = tx.Save(allClients).Error
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	// Save changes
+	if len(changes) > 0 {
+		err = tx.Model(model.Changes{}).Create(&changes).Error
+		if err != nil {
+			return nil, err
+		}
+		LastUpdate = dt
+	}
+	return inboundIds, nil
+}
+
 func (s *ClientService) findInboundsChanges(tx *gorm.DB, client *model.Client, fillOmitted bool) ([]uint, error) {
 	var err error
 	var oldClient model.Client
diff --git a/service/config.go b/service/config.go
index 53ec5c4..d2a130c 100644
--- a/service/config.go
+++ b/service/config.go
@@ -14,12 +14,12 @@ import (
 )
 
 var (
-	LastUpdate        int64
-	corePtr           *core.Core
-	startCoreMu       sync.Mutex
+	LastUpdate          int64
+	corePtr             *core.Core
+	startCoreMu         sync.Mutex
 	startCoreInProgress bool
-	lastStartFailTime time.Time
-	startCooldown     = 15 * time.Second
+	lastStartFailTime   time.Time
+	startCooldown       = 15 * time.Second
 )
 
 type ConfigService struct {
diff --git a/service/server.go b/service/server.go
index b10c29a..8db4112 100644
--- a/service/server.go
+++ b/service/server.go
@@ -268,8 +268,8 @@ func (s *ServerService) GetDatabaseInfo() map[string]int64 {
 	db.Model(&model.Outbound{}).Count(&outboundsCount)
 	db.Model(&model.Service{}).Count(&servicesCount)
 	db.Model(&model.Endpoint{}).Count(&endpointsCount)
-	db.Model(&model.Client{}).Select("COALESCE(SUM(up),0)").Scan(&clientUp)
-	db.Model(&model.Client{}).Select("COALESCE(SUM(down),0)").Scan(&clientDown)
+	db.Model(&model.Client{}).Select("COALESCE(SUM(up+total_up),0)").Scan(&clientUp)
+	db.Model(&model.Client{}).Select("COALESCE(SUM(down+total_down),0)").Scan(&clientDown)
 
 	info["clients"] = clientsCount
 	info["inbounds"] = inboundsCount