diff --git a/encoding.go b/encoding.go
index 0c8a73f..60811d1 100644
--- a/encoding.go
+++ b/encoding.go
@@ -3,8 +3,365 @@ package carbon
 import (
 	"bytes"
 	"fmt"
+	"strconv"
 )
 
+// DateTime defines a DateTime struct.
+// 定义 DateTime 结构体
+type DateTime struct {
+	Carbon
+}
+
+// DateTimeMilli defines a DateTimeMilli struct.
+// 定义 DateTimeMilli 结构体
+type DateTimeMilli struct {
+	Carbon
+}
+
+// DateTimeMicro defines a DateTimeMicro struct.
+// 定义 DateTimeMicro 结构体
+type DateTimeMicro struct {
+	Carbon
+}
+
+// DateTimeNano defines a DateTimeNano struct.
+// 定义 DateTimeNano 结构体
+type DateTimeNano struct {
+	Carbon
+}
+
+// Date defines a Date struct.
+// 定义 Date 结构体
+type Date struct {
+	Carbon
+}
+
+// DateMilli defines a DateMilli struct.
+// 定义 DateMilli 结构体
+type DateMilli struct {
+	Carbon
+}
+
+// DateMicro defines a DateMicro struct.
+// 定义 DateMicro 结构体
+type DateMicro struct {
+	Carbon
+}
+
+// DateNano defines a DateNano struct.
+// 定义 DateNano 结构体
+type DateNano struct {
+	Carbon
+}
+
+// Time defines a Time struct.
+// 定义 Time 结构体
+type Time struct {
+	Carbon
+}
+
+// TimeMilli defines a TimeMilli struct.
+// 定义 TimeMilli 结构体
+type TimeMilli struct {
+	Carbon
+}
+
+// TimeMicro defines a TimeMicro struct.
+// 定义 TimeMicro 结构体
+type TimeMicro struct {
+	Carbon
+}
+
+// TimeNano defines a TimeNano struct.
+// 定义 TimeNano 结构体
+type TimeNano struct {
+	Carbon
+}
+
+// Timestamp defines a Timestamp struct.
+// 定义 Timestamp 结构体
+type Timestamp struct {
+	Carbon
+}
+
+// TimestampMilli defines a TimestampMilli struct.
+// 定义 TimestampMilli 结构体
+type TimestampMilli struct {
+	Carbon
+}
+
+// TimestampMicro defines a TimestampMicro struct.
+// 定义 TimestampMicro 结构体
+type TimestampMicro struct {
+	Carbon
+}
+
+// TimestampNano defines a TimestampNano struct.
+// 定义 TimestampNano 结构体
+type TimestampNano struct {
+	Carbon
+}
+
+// MarshalJSON implements the interface json.Marshal for DateTime struct.
+// 实现 MarshalJSON 接口
+func (t DateTime) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToDateTimeString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for DateTime struct.
+// 实现 UnmarshalJSON 接口
+func (t *DateTime) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), DateTimeLayout, t.Location())
+	if c.Error == nil {
+		*t = DateTime{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for DateTimeMilli struct.
+// 实现 MarshalJSON 接口
+func (t DateTimeMilli) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToDateTimeMilliString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for DateTimeMilli struct.
+// 实现 UnmarshalJSON 接口
+func (t *DateTimeMilli) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), DateTimeMilliLayout, t.Location())
+	if c.Error == nil {
+		*t = DateTimeMilli{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for DateTimeMicro struct.
+// 实现 MarshalJSON 接口
+func (t DateTimeMicro) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToDateTimeMicroString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for DateTimeMicro struct.
+// 实现 UnmarshalJSON 接口
+func (t *DateTimeMicro) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), DateTimeMicroLayout, t.Location())
+	if c.Error == nil {
+		*t = DateTimeMicro{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for DateTimeNano struct.
+// 实现 MarshalJSON 接口
+func (t DateTimeNano) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToDateTimeNanoString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for DateTimeNano struct.
+// 实现 UnmarshalJSON 接口
+func (t *DateTimeNano) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), DateTimeNanoLayout, t.Location())
+	if c.Error == nil {
+		*t = DateTimeNano{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for Date struct.
+// 实现 MarshalJSON 接口
+func (t Date) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToDateString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for Date struct.
+// 实现 UnmarshalJSON 接口
+func (t *Date) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), DateLayout, t.Location())
+	if c.Error == nil {
+		*t = Date{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for DateMilli struct.
+// 实现 MarshalJSON 接口
+func (t DateMilli) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToDateMilliString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for DateMilli struct.
+// 实现 UnmarshalJSON 接口
+func (t *DateMilli) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), DateMilliLayout, t.Location())
+	if c.Error == nil {
+		*t = DateMilli{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for DateMicro struct.
+// 实现 MarshalJSON 接口
+func (t DateMicro) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToDateMicroString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for DateMicro struct.
+// 实现 UnmarshalJSON 接口
+func (t *DateMicro) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), DateMicroLayout, t.Location())
+	if c.Error == nil {
+		*t = DateMicro{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for DateNano struct.
+// 实现 MarshalJSON 接口
+func (t DateNano) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToDateNanoString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for DateNano struct.
+// 实现 UnmarshalJSON 接口
+func (t *DateNano) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), DateNanoLayout, t.Location())
+	if c.Error == nil {
+		*t = DateNano{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for Time struct.
+// 实现 MarshalJSON 接口
+func (t Time) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToTimeString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for Time struct.
+// 实现 UnmarshalJSON 接口
+func (t *Time) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), TimeLayout, t.Location())
+	if c.Error == nil {
+		*t = Time{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for TimeMilli struct.
+// 实现 MarshalJSON 接口
+func (t TimeMilli) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToTimeMilliString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for TimeMilli struct.
+// 实现 UnmarshalJSON 接口
+func (t *TimeMilli) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), TimeMilliLayout, t.Location())
+	if c.Error == nil {
+		*t = TimeMilli{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for TimeMicro struct.
+// 实现 MarshalJSON 接口
+func (t TimeMicro) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToTimeMicroString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for TimeMicro struct.
+// 实现 UnmarshalJSON 接口
+func (t *TimeMicro) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), TimeMicroLayout, t.Location())
+	if c.Error == nil {
+		*t = TimeMicro{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for TimeNano struct.
+// 实现 MarshalJSON 接口
+func (t TimeNano) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`"%s"`, t.ToTimeNanoString())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for TimeNano struct.
+// 实现 UnmarshalJSON 接口
+func (t *TimeNano) UnmarshalJSON(b []byte) error {
+	c := ParseByLayout(string(bytes.Trim(b, `"`)), TimeNanoLayout, t.Location())
+	if c.Error == nil {
+		*t = TimeNano{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for Timestamp struct.
+// 实现 MarshalJSON 接口
+func (t Timestamp) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`%d`, t.Timestamp())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for Timestamp struct.
+// 实现 UnmarshalJSON 接口
+func (t *Timestamp) UnmarshalJSON(b []byte) error {
+	ts, _ := strconv.ParseInt(string(b), 10, 64)
+	c := CreateFromTimestamp(ts)
+	if c.Error == nil {
+		*t = Timestamp{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for TimestampMilli struct.
+// 实现 MarshalJSON 接口
+func (t TimestampMilli) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`%d`, t.TimestampMilli())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for TimestampMilli struct.
+// 实现 UnmarshalJSON 接口
+func (t *TimestampMilli) UnmarshalJSON(b []byte) error {
+	ts, _ := strconv.ParseInt(string(b), 10, 64)
+	c := CreateFromTimestampMilli(ts)
+	if c.Error == nil {
+		*t = TimestampMilli{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface MarshalJSON for TimestampMicro struct.
+// 实现 MarshalJSON 接口
+func (t TimestampMicro) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`%d`, t.TimestampMicro())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for TimestampMicro struct.
+// 实现 UnmarshalJSON 接口
+func (t *TimestampMicro) UnmarshalJSON(b []byte) error {
+	ts, _ := strconv.ParseInt(string(b), 10, 64)
+	c := CreateFromTimestampMicro(ts)
+	if c.Error == nil {
+		*t = TimestampMicro{Carbon: c}
+	}
+	return c.Error
+}
+
+// MarshalJSON implements the interface json.Marshal for TimestampNano struct.
+// 实现 MarshalJSON 接口
+func (t TimestampNano) MarshalJSON() ([]byte, error) {
+	return []byte(fmt.Sprintf(`%d`, t.TimestampNano())), nil
+}
+
+// UnmarshalJSON implements the interface json.Unmarshal for TimestampNano struct.
+// 实现 UnmarshalJSON 接口
+func (t *TimestampNano) UnmarshalJSON(b []byte) error {
+	ts, _ := strconv.ParseInt(string(b), 10, 64)
+	c := CreateFromTimestampNano(ts)
+	if c.Error == nil {
+		*t = TimestampNano{Carbon: c}
+	}
+	return c.Error
+}
+
 // MarshalJSON implements the json.Marshaler interface.
 // 实现 json.Marshaler 接口
 func (c Carbon) MarshalJSON() ([]byte, error) {
@@ -50,3 +407,315 @@ func (c *Carbon) UnmarshalJSON(b []byte) error {
 	}
 	return c.Error
 }
+
+// Int64 outputs timestamp with second.
+// 输出秒级时间戳
+func (t Timestamp) Int64() int64 {
+	return t.Timestamp()
+}
+
+// Int64 outputs timestamp with millisecond.
+// 输出豪秒级时间戳
+func (t TimestampMilli) Int64() int64 {
+	return t.TimestampMilli()
+}
+
+// Int64 outputs timestamp with microsecond.
+// 输出微秒级时间戳
+func (t TimestampMicro) Int64() int64 {
+	return t.TimestampMicro()
+}
+
+// Int64 outputs timestamp with nanosecond.
+// 输出纳秒级时间戳
+func (t TimestampNano) Int64() int64 {
+	return t.TimestampNano()
+}
+
+// String implements the interface Stringer for DateTime struct.
+// 实现 Stringer 接口
+func (t DateTime) String() string {
+	return t.ToDateTimeString()
+}
+
+// String implements the interface Stringer for DateTimeMilli struct.
+// 实现 Stringer 接口
+func (t DateTimeMilli) String() string {
+	return t.ToDateTimeMilliString()
+}
+
+// String implements the interface Stringer for DateTimeMicro struct.
+// 实现 Stringer 接口
+func (t DateTimeMicro) String() string {
+	return t.ToDateTimeMicroString()
+}
+
+// String implements the interface Stringer for DateTimeNano struct.
+// 实现 Stringer 接口
+func (t DateTimeNano) String() string {
+	return t.ToDateTimeNanoString()
+}
+
+// String implements the interface Stringer for Date struct.
+// 实现 Stringer 接口
+func (t Date) String() string {
+	return t.ToDateString()
+}
+
+// String implements the interface Stringer for DateMilli struct.
+// 实现 Stringer 接口
+func (t DateMilli) String() string {
+	return t.ToDateMilliString()
+}
+
+// String implements the interface Stringer for DateMicro struct.
+// 实现 Stringer 接口
+func (t DateMicro) String() string {
+	return t.ToDateMicroString()
+}
+
+// String implements the interface Stringer for DateNano struct.
+// 实现 Stringer 接口
+func (t DateNano) String() string {
+	return t.ToDateNanoString()
+}
+
+// String implements the interface Stringer for Time struct.
+// 实现 Stringer 接口
+func (t Time) String() string {
+	return t.ToTimeString()
+}
+
+// String implements the interface Stringer for TimeMilli struct.
+// 实现 Stringer 接口
+func (t TimeMilli) String() string {
+	return t.ToTimeMilliString()
+}
+
+// String implements the interface Stringer for TimeMicro struct.
+// 实现 Stringer 接口
+func (t TimeMicro) String() string {
+	return t.ToTimeMicroString()
+}
+
+// String implements the interface Stringer for TimeNano struct.
+// 实现 Stringer 接口
+func (t TimeNano) String() string {
+	return t.ToTimeNanoString()
+}
+
+// String implements the interface Stringer for Timestamp struct.
+// 实现 Stringer 接口
+func (t Timestamp) String() string {
+	return strconv.FormatInt(t.Timestamp(), 10)
+}
+
+// String implements the interface Stringer for TimestampMilli struct.
+// 实现 Stringer 接口
+func (t TimestampMilli) String() string {
+	return strconv.FormatInt(t.TimestampMilli(), 10)
+}
+
+// String implements the interface Stringer for TimestampMicro struct.
+// 实现 Stringer 接口
+func (t TimestampMicro) String() string {
+	return strconv.FormatInt(t.TimestampMicro(), 10)
+}
+
+// String implements the interface Stringer for TimestampNano struct.
+// 实现 Stringer 接口
+func (t TimestampNano) String() string {
+	return strconv.FormatInt(t.TimestampNano(), 10)
+}
+
+// GormDataType implements the interface GormDataTypeInterface for DateTime struct.
+// 实现 GormDataTypeInterface 接口
+func (t DateTime) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for DateTimeMilli struct.
+// 实现 GormDataTypeInterface 接口
+func (t DateTimeMilli) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for DateTimeMicro struct.
+// 实现 GormDataTypeInterface 接口
+func (t DateTimeMicro) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for DateTimeNano struct.
+// 实现 GormDataTypeInterface 接口
+func (t DateTimeNano) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for Date struct.
+// 实现 GormDataTypeInterface 接口
+func (t Date) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for DateMilli struct.
+// 实现 GormDataTypeInterface 接口
+func (t DateMilli) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for DateMicro struct.
+// 实现 GormDataTypeInterface 接口
+func (t DateMicro) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for DateNano struct.
+// 实现 GormDataTypeInterface 接口
+func (t DateNano) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for Time struct.
+// 实现 GormDataTypeInterface 接口
+func (t Time) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for TimeMilli struct.
+// 实现 GormDataTypeInterface 接口
+func (t TimeMilli) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for TimeMicro struct.
+// 实现 GormDataTypeInterface 接口
+func (t TimeMicro) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for TimeNano struct.
+// 实现 GormDataTypeInterface 接口
+func (t TimeNano) GormDataType() string {
+	return "time"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for Timestamp struct.
+// 实现 GormDataTypeInterface 接口
+func (t Timestamp) GormDataType() string {
+	return "int"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for TimestampMilli struct.
+// 实现 GormDataTypeInterface 接口
+func (t TimestampMilli) GormDataType() string {
+	return "int"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for TimestampMicro struct.
+// 实现 GormDataTypeInterface 接口
+func (t TimestampMicro) GormDataType() string {
+	return "int"
+}
+
+// GormDataType implements the interface GormDataTypeInterface for TimestampNano struct.
+// 实现 GormDataTypeInterface 接口
+func (t TimestampNano) GormDataType() string {
+	return "int"
+}
+
+// ToDateTimeStruct converts Carbon to DateTime.
+// 将 Carbon 结构体转换成 DateTime 结构体
+func (c Carbon) ToDateTimeStruct() DateTime {
+	return DateTime{Carbon: c}
+}
+
+// ToDateTimeMilliStruct converts Carbon to DateTimeMilli.
+// 将 Carbon 结构体转换成 DateTimeMilli 结构体
+func (c Carbon) ToDateTimeMilliStruct() DateTimeMilli {
+	return DateTimeMilli{Carbon: c}
+}
+
+// ToDateTimeMicroStruct converts Carbon to DateTimeMicro.
+// 将 Carbon 结构体转换成 DateTimeMicro 结构体
+func (c Carbon) ToDateTimeMicroStruct() DateTimeMicro {
+	return DateTimeMicro{Carbon: c}
+}
+
+// ToDateTimeNanoStruct converts Carbon to DateTimeNano.
+// 将 Carbon 结构体转换成 DateTimeNano 结构体
+func (c Carbon) ToDateTimeNanoStruct() DateTimeNano {
+	return DateTimeNano{Carbon: c}
+}
+
+// ToDateStruct converts Carbon to Date.
+// 将 Carbon 结构体转换成 Date 结构体
+func (c Carbon) ToDateStruct() Date {
+	return Date{Carbon: c}
+}
+
+// ToDateMilliStruct converts Carbon to DateMilli.
+// 将 Carbon 结构体转换成 DateMilli 结构体
+func (c Carbon) ToDateMilliStruct() DateMilli {
+	return DateMilli{Carbon: c}
+}
+
+// ToDateMicroStruct converts Carbon to DateMicro.
+// 将 Carbon 结构体转换成 DateMicro 结构体
+func (c Carbon) ToDateMicroStruct() DateMicro {
+	return DateMicro{Carbon: c}
+}
+
+// ToDateNanoStruct converts Carbon to DateNano.
+// 将 Carbon 结构体转换成 DateNano 结构体
+func (c Carbon) ToDateNanoStruct() DateNano {
+	return DateNano{Carbon: c}
+}
+
+// ToTimeStruct converts Carbon to Time.
+// 将 Carbon 结构体转换成 Time 结构体
+func (c Carbon) ToTimeStruct() Time {
+	return Time{Carbon: c}
+}
+
+// ToTimeMilliStruct converts Carbon to TimeMilli.
+// 将 Carbon 结构体转换成 TimeMilli 结构体
+func (c Carbon) ToTimeMilliStruct() TimeMilli {
+	return TimeMilli{Carbon: c}
+}
+
+// ToTimeMicroStruct converts Carbon to TimeMicro.
+// 将 Carbon 结构体转换成 TimeMicro 结构体
+func (c Carbon) ToTimeMicroStruct() TimeMicro {
+	return TimeMicro{Carbon: c}
+}
+
+// ToTimeNanoStruct converts Carbon to TimeNano.
+// 将 Carbon 结构体转换成 TimeNano 结构体
+func (c Carbon) ToTimeNanoStruct() TimeNano {
+	return TimeNano{Carbon: c}
+}
+
+// ToTimestampStruct converts Carbon to Timestamp.
+// 将 Carbon 结构体转换成 Timestamp 结构体
+func (c Carbon) ToTimestampStruct() Timestamp {
+	return Timestamp{Carbon: c}
+}
+
+// ToTimestampMilliStruct converts Carbon to TimestampMilli.
+// 将 Carbon 结构体转换成 TimestampMilli 结构体
+func (c Carbon) ToTimestampMilliStruct() TimestampMilli {
+	return TimestampMilli{Carbon: c}
+}
+
+// ToTimestampMicroStruct converts Carbon to TimestampMicro.
+// 将 Carbon 结构体转换成 TimestampMicro 结构体
+func (c Carbon) ToTimestampMicroStruct() TimestampMicro {
+	return TimestampMicro{Carbon: c}
+}
+
+// ToTimestampNanoStruct converts Carbon to TimestampNano.
+// 将 Carbon 结构体转换成 TimestampNano 结构体
+func (c Carbon) ToTimestampNanoStruct() TimestampNano {
+	return TimestampNano{Carbon: c}
+}
diff --git a/encoding_unit_test.go b/encoding_unit_test.go
index 785dd9f..a1f6905 100644
--- a/encoding_unit_test.go
+++ b/encoding_unit_test.go
@@ -32,6 +32,26 @@ type Person struct {
 	Birthday15 Carbon `json:"birthday15" carbon:"type:timestampMilli" tz:"PRC"`
 	Birthday16 Carbon `json:"birthday16" carbon:"type:timestampMicro" tz:"PRC"`
 	Birthday17 Carbon `json:"birthday17" carbon:"type:timestampNano" tz:"PRC"`
+
+	Birthday18 DateTime      `json:"birthday18"`
+	Birthday19 DateTimeMilli `json:"birthday19"`
+	Birthday20 DateTimeMicro `json:"birthday20"`
+	Birthday21 DateTimeNano  `json:"birthday21"`
+
+	Birthday22 Date      `json:"birthday22"`
+	Birthday23 DateMilli `json:"birthday23"`
+	Birthday24 DateMicro `json:"birthday24"`
+	Birthday25 DateNano  `json:"birthday25"`
+
+	Birthday26 Time      `json:"birthday26"`
+	Birthday27 TimeMilli `json:"birthday27"`
+	Birthday28 TimeMicro `json:"birthday28"`
+	Birthday29 TimeNano  `json:"birthday29"`
+
+	Birthday30 Timestamp      `json:"birthday30"`
+	Birthday31 TimestampMilli `json:"birthday31"`
+	Birthday32 TimestampMicro `json:"birthday32"`
+	Birthday33 TimestampNano  `json:"birthday33"`
 }
 
 func TestCarbon_MarshalJSON(t *testing.T) {
@@ -56,6 +76,26 @@ func TestCarbon_MarshalJSON(t *testing.T) {
 		Birthday15: c,
 		Birthday16: c,
 		Birthday17: c,
+
+		Birthday18: c.ToDateTimeStruct(),
+		Birthday19: c.ToDateTimeMilliStruct(),
+		Birthday20: c.ToDateTimeMicroStruct(),
+		Birthday21: c.ToDateTimeNanoStruct(),
+
+		Birthday22: c.ToDateStruct(),
+		Birthday23: c.ToDateMilliStruct(),
+		Birthday24: c.ToDateMicroStruct(),
+		Birthday25: c.ToDateNanoStruct(),
+
+		Birthday26: c.ToTimeStruct(),
+		Birthday27: c.ToTimeMilliStruct(),
+		Birthday28: c.ToTimeMicroStruct(),
+		Birthday29: c.ToTimeNanoStruct(),
+
+		Birthday30: c.ToTimestampStruct(),
+		Birthday31: c.ToTimestampMilliStruct(),
+		Birthday32: c.ToTimestampMicroStruct(),
+		Birthday33: c.ToTimestampNanoStruct(),
 	}
 
 	data, marshalErr := json.Marshal(&person)
@@ -152,6 +192,89 @@ func TestCarbon_MarshalJSON(t *testing.T) {
 			actual: person.Birthday17.String(),
 			want:   "2020-08-05 13:14:15",
 		},
+		{
+			name:   "birthday18",
+			actual: person.Birthday18.String(),
+			want:   "2020-08-05 13:14:15",
+		},
+		{
+			name:   "birthday19",
+			actual: person.Birthday19.String(),
+			want:   "2020-08-05 13:14:15.999",
+		},
+		{
+			name:   "birthday20",
+			actual: person.Birthday20.String(),
+			want:   "2020-08-05 13:14:15.999999",
+		},
+		{
+			name:   "birthday21",
+			actual: person.Birthday21.String(),
+			want:   "2020-08-05 13:14:15.999999999",
+		},
+
+		{
+			name:   "birthday22",
+			actual: person.Birthday22.String(),
+			want:   "2020-08-05",
+		},
+		{
+			name:   "birthday23",
+			actual: person.Birthday23.String(),
+			want:   "2020-08-05.999",
+		},
+		{
+			name:   "birthday24",
+			actual: person.Birthday24.String(),
+			want:   "2020-08-05.999999",
+		},
+		{
+			name:   "birthday25",
+			actual: person.Birthday25.String(),
+			want:   "2020-08-05.999999999",
+		},
+
+		{
+			name:   "birthday26",
+			actual: person.Birthday26.String(),
+			want:   "13:14:15",
+		},
+		{
+			name:   "birthday27",
+			actual: person.Birthday27.String(),
+			want:   "13:14:15.999",
+		},
+		{
+			name:   "birthday28",
+			actual: person.Birthday28.String(),
+			want:   "13:14:15.999999",
+		},
+		{
+			name:   "birthday29",
+			actual: person.Birthday29.String(),
+			want:   "13:14:15.999999999",
+		},
+
+		{
+			name:   "birthday30",
+			actual: person.Birthday30.String(),
+			want:   "1596604455",
+		},
+		{
+			name:   "birthday31",
+			actual: person.Birthday31.String(),
+			want:   "1596604455999",
+		},
+		{
+			name:   "birthday32",
+			actual: person.Birthday32.String(),
+			want:   "1596604455999999",
+		},
+		{
+			name:   "birthday33",
+			actual: person.Birthday33.String(),
+			want:   "1596604455999999999",
+		},
 	}
 
 	for _, tt := range tests {
@@ -181,7 +304,23 @@ func TestCarbon_UnmarshalJSON(t *testing.T) {
 		"birthday14":"2020-08-05 13:14:15",
 		"birthday15":"2020-08-05 13:14:15",
 		"birthday16":"2020-08-05 13:14:15",
-		"birthday17":"2020-08-05 13:14:15"
+		"birthday17":"2020-08-05 13:14:15",
+		"birthday18":"2020-08-05 13:14:15",
+		"birthday19":"2020-08-05 13:14:15.999",
+		"birthday20":"2020-08-05 13:14:15.999999",
+		"birthday21":"2020-08-05 13:14:15.999999999",
+		"birthday22":"2020-08-05",
+		"birthday23":"2020-08-05.999",
+		"birthday24":"2020-08-05.999999",
+		"birthday25":"2020-08-05.999999999",
+		"birthday26":"13:14:15",
+		"birthday27":"13:14:15.999",
+		"birthday28":"13:14:15.999999",
+		"birthday29":"13:14:15.999999999",
+		"birthday30":1596604455,
+		"birthday31":1596604455999,
+		"birthday32":1596604455999999,
+		"birthday33":1596604455999999999
 	}`
 
 	var person Person
@@ -279,6 +418,88 @@ func TestCarbon_UnmarshalJSON(t *testing.T) {
 			actual: person.Birthday17.String(),
 			want:   "2020-08-05 13:14:15",
 		},
+		{
+			name:   "birthday18",
+			actual: person.Birthday18.String(),
+			want:   "2020-08-05 13:14:15",
+		},
+		{
+			name:   "birthday19",
+			actual: person.Birthday19.String(),
+			want:   "2020-08-05 13:14:15.999",
+		},
+		{
+			name:   "birthday20",
+			actual: person.Birthday20.String(),
+			want:   "2020-08-05 13:14:15.999999",
+		},
+		{
+			name:   "birthday21",
+			actual: person.Birthday21.String(),
+			want:   "2020-08-05 13:14:15.999999999",
+		},
+		{
+			name:   "birthday22",
+			actual: person.Birthday22.String(),
+			want:   "2020-08-05",
+		},
+		{
+			name:   "birthday23",
+			actual: person.Birthday23.String(),
+			want:   "2020-08-05.999",
+		},
+		{
+			name:   "birthday24",
+			actual: person.Birthday24.String(),
+			want:   "2020-08-05.999999",
+		},
+		{
+			name:   "birthday25",
+			actual: person.Birthday25.String(),
+			want:   "2020-08-05.999999999",
+		},
+
+		{
+			name:   "birthday26",
+			actual: person.Birthday26.String(),
+			want:   "13:14:15",
+		},
+		{
+			name:   "birthday27",
+			actual: person.Birthday27.String(),
+			want:   "13:14:15.999",
+		},
+		{
+			name:   "birthday28",
+			actual: person.Birthday28.String(),
+			want:   "13:14:15.999999",
+		},
+		{
+			name:   "birthday29",
+			actual: person.Birthday29.String(),
+			want:   "13:14:15.999999999",
+		},
+
+		{
+			name:   "birthday30",
+			actual: person.Birthday30.String(),
+			want:   "1596604455",
+		},
+		{
+			name:   "birthday31",
+			actual: person.Birthday31.String(),
+			want:   "1596604455999",
+		},
+		{
+			name:   "birthday32",
+			actual: person.Birthday32.String(),
+			want:   "1596604455999999",
+		},
+		{
+			name:   "birthday33",
+			actual: person.Birthday33.String(),
+			want:   "1596604455999999999",
+		},
 	}
 
 	for _, tt := range tests {
@@ -310,6 +531,26 @@ func TestCarbon_MarshalJSON_LoadTag(t *testing.T) {
 		Birthday15: c,
 		Birthday16: c,
 		Birthday17: c,
+
+		Birthday18: DateTime{Carbon: c},
+		Birthday19: DateTimeMilli{Carbon: c},
+		Birthday20: DateTimeMicro{Carbon: c},
+		Birthday21: DateTimeNano{Carbon: c},
+
+		Birthday22: Date{Carbon: c},
+		Birthday23: DateMilli{Carbon: c},
+		Birthday24: DateMicro{Carbon: c},
+		Birthday25: DateNano{Carbon: c},
+
+		Birthday26: Time{Carbon: c},
+		Birthday27: TimeMilli{Carbon: c},
+		Birthday28: TimeMicro{Carbon: c},
+		Birthday29: TimeNano{Carbon: c},
+
+		Birthday30: Timestamp{Carbon: c},
+		Birthday31: TimestampMilli{Carbon: c},
+		Birthday32: TimestampMicro{Carbon: c},
+		Birthday33: TimestampNano{Carbon: c},
 	}
 
 	loadErr := LoadTag(&person)
@@ -410,6 +651,11 @@ func TestCarbon_MarshalJSON_LoadTag(t *testing.T) {
 			actual: person.Birthday17.String(),
 			want:   "1596604455999999999",
 		},
+		{
+			name:   "birthday18",
+			actual: person.Birthday18.String(),
+			want:   "2020-08-05 13:14:15",
+		},
 	}
 
 	for _, tt := range tests {
@@ -439,7 +685,8 @@ func TestCarbon_UnmarshalJSON_LoadTag(t *testing.T) {
 		"birthday14":"1596604455",
 		"birthday15":"1596604455999",
 		"birthday16":"1596604455999999",
-		"birthday17":"1596604455999999999"
+		"birthday17":"1596604455999999999",
+		"birthday18":"2020-08-05 13:14:15"
 	}`
 	var person Person
 	loadErr := LoadTag(&person)
@@ -538,6 +785,11 @@ func TestCarbon_UnmarshalJSON_LoadTag(t *testing.T) {
 			actual: person.Birthday17.String(),
 			want:   "1596604455999999999",
 		},
+		{
+			name:   "birthday18",
+			actual: person.Birthday18.String(),
+			want:   "2020-08-05 13:14:15",
+		},
 	}
 
 	for _, tt := range tests {
@@ -547,6 +799,51 @@ func TestCarbon_UnmarshalJSON_LoadTag(t *testing.T) {
 	}
 }
 
+func TestCarbon_TimestampToInt64(t *testing.T) {
+	jsonStr := `{
+		"birthday30":1596604455,
+		"birthday31":1596604455999,
+		"birthday32":1596604455999999,
+		"birthday33":1596604455999999999
+	}`
+	var person Person
+	unmarshalErr := json.Unmarshal([]byte(jsonStr), &person)
+	assert.Nil(t, unmarshalErr)
+	fmt.Printf("json decode:\n%+v\n", person)
+
+	tests := []struct {
+		name   string
+		want   int64
+		actual int64
+	}{
+		{
+			name:   "birthday30",
+			actual: person.Birthday30.Int64(),
+			want:   1596604455,
+		},
+		{
+			name:   "birthday31",
+			actual: person.Birthday31.Int64(),
+			want:   1596604455999,
+		},
+		{
+			name:   "birthday32",
+			actual: person.Birthday32.Int64(),
+			want:   1596604455999999,
+		},
+		{
+			name:   "birthday33",
+			actual: person.Birthday33.Int64(),
+			want:   1596604455999999999,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			assert.Equalf(t, tt.want, tt.actual, "json.Unmarshal()")
+		})
+	}
+}
 func TestError_Json(t *testing.T) {
 	type Student struct {
 		Birthday1 Carbon `json:"birthday1" carbon:"dateTime"`