diff --git a/app/vmalert-tool/unittest/recording.go b/app/vmalert-tool/unittest/recording.go
index 5f275ead4..a47d104d6 100644
--- a/app/vmalert-tool/unittest/recording.go
+++ b/app/vmalert-tool/unittest/recording.go
@@ -6,6 +6,7 @@ import (
 	"net/url"
 	"reflect"
 	"sort"
+	"time"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutils"
@@ -29,7 +30,7 @@ func checkMetricsqlCase(cases []metricsqlTestCase, q datasource.QuerierBuilder)
 	queries := q.BuildWithParams(datasource.QuerierParams{QueryParams: url.Values{"nocache": {"1"}, "latency_offset": {"1ms"}}, DataSourceType: "prometheus"})
 Outer:
 	for _, mt := range cases {
-		result, _, err := queries.Query(context.Background(), mt.Expr, mt.EvalTime.ParseTime())
+		result, _, err := queries.Query(context.Background(), mt.Expr, durationToTime(mt.EvalTime))
 		if err != nil {
 			checkErrs = append(checkErrs, fmt.Errorf("    expr: %q, time: %s, err: %w", mt.Expr,
 				mt.EvalTime.Duration().String(), err))
@@ -90,3 +91,10 @@ Outer:
 	}
 	return
 }
+
+func durationToTime(pd *promutils.Duration) time.Time {
+	if pd == nil {
+		return time.Time{}
+	}
+	return time.UnixMilli(pd.Duration().Milliseconds())
+}
diff --git a/lib/promutils/duration.go b/lib/promutils/duration.go
index 565e592f1..2fc57c52e 100644
--- a/lib/promutils/duration.go
+++ b/lib/promutils/duration.go
@@ -53,11 +53,3 @@ func ParseDuration(s string) (time.Duration, error) {
 	}
 	return time.Duration(ms) * time.Millisecond, nil
 }
-
-// ParseTime returns time for pd.
-func (pd *Duration) ParseTime() time.Time {
-	if pd == nil {
-		return time.Time{}
-	}
-	return time.UnixMilli(pd.Duration().Milliseconds())
-}