diff --git a/model/criteria/criteria.go b/model/criteria/criteria.go
index c59c392a..bcd72cb7 100644
--- a/model/criteria/criteria.go
+++ b/model/criteria/criteria.go
@@ -6,9 +6,8 @@ import (
 	"errors"
 	"strings"
 
-	"github.com/navidrome/navidrome/log"
-
 	"github.com/Masterminds/squirrel"
+	"github.com/navidrome/navidrome/log"
 )
 
 type Expression = squirrel.Sqlizer
diff --git a/model/criteria/fields.go b/model/criteria/fields.go
index 89187077..c3841ff2 100644
--- a/model/criteria/fields.go
+++ b/model/criteria/fields.go
@@ -1,9 +1,7 @@
 package criteria
 
 import (
-	"fmt"
 	"strings"
-	"time"
 
 	"github.com/navidrome/navidrome/log"
 )
@@ -62,11 +60,3 @@ func mapFields(expr map[string]interface{}) map[string]interface{} {
 	}
 	return m
 }
-
-type Time time.Time
-
-func (t Time) MarshalJSON() ([]byte, error) {
-	//do your serializing here
-	stamp := fmt.Sprintf("\"%s\"", time.Time(t).Format("2006-01-02"))
-	return []byte(stamp), nil
-}
diff --git a/model/criteria/json.go b/model/criteria/json.go
index ec27fc4d..f1f1e201 100644
--- a/model/criteria/json.go
+++ b/model/criteria/json.go
@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"strings"
+	"time"
 )
 
 type unmarshalConjunctionType []Expression
@@ -115,3 +116,10 @@ func marshalConjunction(name string, conj []Expression) ([]byte, error) {
 	}
 	return json.Marshal(aux)
 }
+
+type date time.Time
+
+func (t date) MarshalJSON() ([]byte, error) {
+	stamp := fmt.Sprintf(`"%s"`, time.Time(t).Format("2006-01-02"))
+	return []byte(stamp), nil
+}
diff --git a/model/criteria/operators_test.go b/model/criteria/operators_test.go
index b61ce1b6..5b7bc042 100644
--- a/model/criteria/operators_test.go
+++ b/model/criteria/operators_test.go
@@ -10,8 +10,9 @@ import (
 )
 
 var _ = Describe("Operators", func() {
-	rangeStart := Time(time.Date(2021, 10, 01, 0, 0, 0, 0, time.Local))
-	rangeEnd := Time(time.Date(2021, 11, 01, 0, 0, 0, 0, time.Local))
+	rangeStart := date(time.Date(2021, 10, 01, 0, 0, 0, 0, time.Local))
+	rangeEnd := date(time.Date(2021, 11, 01, 0, 0, 0, 0, time.Local))
+
 	DescribeTable("ToSQL",
 		func(op Expression, expectedSql string, expectedArgs ...any) {
 			sql, args, err := op.ToSql()
@@ -29,7 +30,7 @@ var _ = Describe("Operators", func() {
 		Entry("startsWith", StartsWith{"title": "Low Rider"}, "media_file.title LIKE ?", "Low Rider%"),
 		Entry("endsWith", EndsWith{"title": "Low Rider"}, "media_file.title LIKE ?", "%Low Rider"),
 		Entry("inTheRange [number]", InTheRange{"year": []int{1980, 1990}}, "(media_file.year >= ? AND media_file.year <= ?)", 1980, 1990),
-		Entry("inTheRange [date]", InTheRange{"lastPlayed": []Time{rangeStart, rangeEnd}}, "(annotation.play_date >= ? AND annotation.play_date <= ?)", rangeStart, rangeEnd),
+		Entry("inTheRange [date]", InTheRange{"lastPlayed": []date{rangeStart, rangeEnd}}, "(annotation.play_date >= ? AND annotation.play_date <= ?)", rangeStart, rangeEnd),
 		Entry("before", Before{"lastPlayed": rangeStart}, "annotation.play_date < ?", rangeStart),
 		Entry("after", After{"lastPlayed": rangeStart}, "annotation.play_date > ?", rangeStart),
 		// TODO These may be flaky
@@ -37,7 +38,7 @@ var _ = Describe("Operators", func() {
 		Entry("notInTheLast", NotInTheLast{"lastPlayed": 30}, "(annotation.play_date < ? OR annotation.play_date IS NULL)", startOfPeriod(30, time.Now())),
 	)
 
-	DescribeTable("JSON Conversion",
+	DescribeTable("JSON Marshaling",
 		func(op Expression, jsonString string) {
 			obj := And{op}
 			newJs, err := json.Marshal(obj)