--- a/pkg/models/sr.go	Fri Jan 18 14:58:34 2019 +0100
+++ b/pkg/models/sr.go	Fri Jan 18 15:04:53 2019 +0100
@@ -21,19 +21,14 @@
 	"errors"
 	"fmt"
 	"io"
-	"time"
 )
 
-const SoundingResultDateFormat = "2006-01-02"
-
 type (
-	SoundingResultDate struct{ time.Time }
-
 	SoundingResultMeta struct {
-		Date           SoundingResultDate `json:"date"`
-		Bottleneck     string             `json:"bottleneck"`
-		EPSG           uint               `json:"epsg"`
-		DepthReference string             `json:"depth-reference"`
+		Date           Date   `json:"date"`
+		Bottleneck     string `json:"bottleneck"`
+		EPSG           uint   `json:"epsg"`
+		DepthReference string `json:"depth-reference"`
 	}
 )
 
@@ -50,22 +45,6 @@
 WHERE bn.objnam = $1 AND sr.date_info = $2`
 )
 
-func (srd SoundingResultDate) MarshalJSON() ([]byte, error) {
-	return json.Marshal(srd.Format(SoundingResultDateFormat))
-}
-
-func (srd *SoundingResultDate) UnmarshalJSON(data []byte) error {
-	var s string
-	if err := json.Unmarshal(data, &s); err != nil {
-		return err
-	}
-	d, err := time.Parse(SoundingResultDateFormat, s)
-	if err == nil {
-		*srd = SoundingResultDate{d}
-	}
-	return err
-}
-
 func (m *SoundingResultMeta) Decode(r io.Reader) error {
 	err := json.NewDecoder(r).Decode(m)
 	if err == nil && m.EPSG == 0 {