diff --git a/tariff/energinet.go b/tariff/energinet.go
index 80f981f27..66267b14b 100644
--- a/tariff/energinet.go
+++ b/tariff/energinet.go
@@ -66,8 +66,8 @@ func (t *Energinet) run(done chan error) {
 
 		ts := time.Now().Truncate(time.Hour)
 		uri := fmt.Sprintf(energinet.URI,
-			ts.Format(time.RFC3339),
-			ts.Add(24*time.Hour).Format(time.RFC3339),
+			ts.Format(energinet.TimeFormat),
+			ts.Add(24*time.Hour).Format(energinet.TimeFormat),
 			t.region)
 
 		if err := backoff.Retry(func() error {
diff --git a/tariff/energinet/types.go b/tariff/energinet/types.go
index 06062f330..4ae7a99cb 100644
--- a/tariff/energinet/types.go
+++ b/tariff/energinet/types.go
@@ -1,6 +1,9 @@
 package energinet
 
-const URI = "https://api.energidataservice.dk/dataset/Elspotprices?offset=0&start=%s&end=%s&filter={\"PriceArea\":[\"%s\"]}&timezone=dk&limit=48"
+const (
+	URI        = "https://api.energidataservice.dk/dataset/Elspotprices?offset=0&start=%s&end=%s&filter={\"PriceArea\":[\"%s\"]}&timezone=dk&limit=48"
+	TimeFormat = "2006-01-02T15:04" // RFC3339 short
+)
 
 type Prices struct {
 	Records []PriceInfo `json:"records"`