diff --git a/go.mod b/go.mod
index 0e5f9ef..bf6449b 100644
--- a/go.mod
+++ b/go.mod
@@ -15,7 +15,7 @@ require (
 )
 
 require (
-	github.com/bytedance/sonic v1.11.2 // indirect
+	github.com/bytedance/sonic v1.11.3 // indirect
 	github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d // indirect
 	github.com/chenzhuoyu/iasm v0.9.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
diff --git a/go.sum b/go.sum
index c5afd30..aa71315 100644
--- a/go.sum
+++ b/go.sum
@@ -8,6 +8,8 @@ github.com/bytedance/sonic v1.11.1 h1:JC0+6c9FoWYYxakaoa+c5QTtJeiSZNeByOBhXtAFSn
 github.com/bytedance/sonic v1.11.1/go.mod h1:iZcSUejdk5aukTND/Eu/ivjQuEL0Cu9/rf50Hi0u/g4=
 github.com/bytedance/sonic v1.11.2 h1:ywfwo0a/3j9HR8wsYGWsIWl2mvRsI950HyoxiBERw5A=
 github.com/bytedance/sonic v1.11.2/go.mod h1:iZcSUejdk5aukTND/Eu/ivjQuEL0Cu9/rf50Hi0u/g4=
+github.com/bytedance/sonic v1.11.3 h1:jRN+yEjakWh8aK5FzrciUHG8OFXK+4/KrAX/ysEtHAA=
+github.com/bytedance/sonic v1.11.3/go.mod h1:iZcSUejdk5aukTND/Eu/ivjQuEL0Cu9/rf50Hi0u/g4=
 github.com/chenzhuoyu/base64x v0.0.0-20211019084208-fb5309c8db06/go.mod h1:DH46F32mSOjUmXrMHnKwZdA8wcEefY7UVqBKYGjpdQY=
 github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311/go.mod h1:b583jCggY9gE99b6G5LEC39OIiVsWj+R97kbl5odCEk=
 github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d h1:77cEq6EriyTZ0g/qfRdp61a3Uu/AWrgIq2s0ClJV1g0=
diff --git a/goextVersion.go b/goextVersion.go
index b70571d..67fe519 100644
--- a/goextVersion.go
+++ b/goextVersion.go
@@ -1,5 +1,5 @@
 package goext
 
-const GoextVersion = "0.0.413"
+const GoextVersion = "0.0.414"
 
-const GoextVersionTimestamp = "2024-03-11T21:00:30+0100"
+const GoextVersionTimestamp = "2024-03-16T19:42:59+0100"
diff --git a/rfctime/date.go b/rfctime/date.go
index 85caf2b..a6e1429 100644
--- a/rfctime/date.go
+++ b/rfctime/date.go
@@ -102,6 +102,13 @@ func (t *Date) UnmarshalBSONValue(bt bsontype.Type, data []byte) error {
 		return err
 	}
 
+	if tt == "" {
+		t.Year = 0
+		t.Month = 0
+		t.Day = 0
+		return nil
+	}
+
 	v, err := time.Parse(t.FormatStr(), tt)
 	if err != nil {
 		return err
@@ -114,7 +121,10 @@ func (t *Date) UnmarshalBSONValue(bt bsontype.Type, data []byte) error {
 }
 
 func (t Date) MarshalBSONValue() (bsontype.Type, []byte, error) {
-	return bson.MarshalValue(t.TimeUTC().Format(t.FormatStr()))
+	if t.IsZero() {
+		return bson.MarshalValue("")
+	}
+	return bson.MarshalValue(t.String())
 }
 
 func (t Date) DecodeValue(dc bsoncodec.DecodeContext, vr bsonrw.ValueReader, val reflect.Value) error {
@@ -242,6 +252,10 @@ func (t *Date) ParseString(v string) error {
 	return nil
 }
 
+func (t Date) IsZero() bool {
+	return t.Year == 0 && t.Month == 0 && t.Day == 0
+}
+
 func NewDate(t time.Time) Date {
 	return Date{
 		Year:  t.Year(),