diff --git a/cli/command/formatter/service.go b/cli/command/formatter/service.go
index 8f57af22d9..e32704f337 100644
--- a/cli/command/formatter/service.go
+++ b/cli/command/formatter/service.go
@@ -224,7 +224,7 @@ func (ctx *serviceInspectContext) HasUpdateStatusStarted() bool {
 }
 
 func (ctx *serviceInspectContext) UpdateStatusStarted() string {
-	return units.HumanDuration(time.Since(*ctx.Service.UpdateStatus.StartedAt))
+	return units.HumanDuration(time.Since(*ctx.Service.UpdateStatus.StartedAt)) + " ago"
 }
 
 func (ctx *serviceInspectContext) UpdateIsCompleted() bool {
@@ -232,7 +232,7 @@ func (ctx *serviceInspectContext) UpdateIsCompleted() bool {
 }
 
 func (ctx *serviceInspectContext) UpdateStatusCompleted() string {
-	return units.HumanDuration(time.Since(*ctx.Service.UpdateStatus.CompletedAt))
+	return units.HumanDuration(time.Since(*ctx.Service.UpdateStatus.CompletedAt)) + " ago"
 }
 
 func (ctx *serviceInspectContext) UpdateStatusMessage() string {
diff --git a/daemon/cluster/convert/service.go b/daemon/cluster/convert/service.go
index 5f6901ec28..e1fde31c70 100644
--- a/daemon/cluster/convert/service.go
+++ b/daemon/cluster/convert/service.go
@@ -58,12 +58,12 @@ func ServiceFromGRPC(s swarmapi.Service) (types.Service, error) {
 		}
 
 		startedAt, _ := gogotypes.TimestampFromProto(s.UpdateStatus.StartedAt)
-		if !startedAt.IsZero() {
+		if !startedAt.IsZero() && startedAt.Unix() != 0 {
 			service.UpdateStatus.StartedAt = &startedAt
 		}
 
 		completedAt, _ := gogotypes.TimestampFromProto(s.UpdateStatus.CompletedAt)
-		if !completedAt.IsZero() {
+		if !completedAt.IsZero() && completedAt.Unix() != 0 {
 			service.UpdateStatus.CompletedAt = &completedAt
 		}