diff --git a/README-ru.md b/README-ru.md
index cb63587..005cc27 100644
--- a/README-ru.md
+++ b/README-ru.md
@@ -3184,9 +3184,9 @@ NumberChangedEvent).  Основной слушатель события име
 
 Дополнительные слушатели события могут иметь следующий формат
 
-	func(picker NumberPicker, newValue string)
-	func(newValue, oldValue string)
-	func(newValue string)
+	func(picker NumberPicker, newValue float64)
+	func(newValue, oldValue float64)
+	func(newValue float64)
 	func(picker NumberPicker)
 	func()
 
@@ -3232,13 +3232,21 @@ NumberChangedEvent).  Основной слушатель события име
 Для отслеживания изменения вводимого значения используется событие "date-changed" (константа
 DateChangedEvent).  Основной слушатель события имеет следующий формат:
 
-	func(picker DatePicker, newDate time.Time)
+	func(picker DatePicker, newDate, oldDate time.Time)
 
-где второй аргумент это новое значение даты
+где второй аргумент это новое значение даты, третий аргумент - предыдущее значение даты.
+
+Дополнительные слушатели события могут иметь следующий формат
+
+	func(picker DatePicker, newDate time.Time)
+	func(newDate, oldDate time.Time)
+	func(newDate time.Time)
+	func(picker DatePicker)
+	func()
 
 Получить текущий список слушателей изменения даты можно с помощью функции
 
-	func GetDateChangedListeners(view View, subviewID ...string) []func(DatePicker, time.Time)
+	func GetDateChangedListeners(view View, subviewID ...string) []func(DatePicker, time.Time, time.Time)
 
 ## TimePicker
 
diff --git a/README.md b/README.md
index ef7a792..a433e80 100644
--- a/README.md
+++ b/README.md
@@ -3147,9 +3147,9 @@ where the second argument is the new value, the third argument is the previous v
 
 Additional event listeners can have the following format
 
-	func(picker NumberPicker, newValue string)
-	func(newValue, oldValue string)
-	func(newValue string)
+	func(picker NumberPicker, newValue float64)
+	func(newValue, oldValue float64)
+	func(newValue float64)
 	func(picker NumberPicker)
 	func()
 
@@ -3196,13 +3196,21 @@ You can read the values of these properties using the functions:
 The "date-changed" event (DateChangedEvent constant) is used to track the change in the entered value. 
 The main event listener has the following format:
 
-	func(picker DatePicker, newDate time.Time)
+	func(picker DatePicker, newDate, oldDate time.Time)
 
-where the second argument is the new date value
+where the second argument is the new date value, the third argument is the previous date value.
+
+Additional event listeners can have the following format
+
+	func(picker DatePicker, newDate time.Time)
+	func(newDate, oldDate time.Time)
+	func(newDate time.Time)
+	func(picker DatePicker)
+	func()
 
 You can get the current list of date change listeners using the function
 
-	func GetDateChangedListeners(view View, subviewID ...string) []func(DatePicker, time.Time)
+	func GetDateChangedListeners(view View, subviewID ...string) []func(DatePicker, time.Time, time.Time)
 
 ## TimePicker
 
diff --git a/datePicker.go b/datePicker.go
index ed799d1..0325450 100644
--- a/datePicker.go
+++ b/datePicker.go
@@ -22,7 +22,7 @@ type DatePicker interface {
 
 type datePickerData struct {
 	viewData
-	dateChangedListeners []func(DatePicker, time.Time)
+	dateChangedListeners []func(DatePicker, time.Time, time.Time)
 }
 
 // NewDatePicker create new DatePicker object and return it
@@ -40,7 +40,7 @@ func newDatePicker(session Session) View {
 func (picker *datePickerData) init(session Session) {
 	picker.viewData.init(session)
 	picker.tag = "DatePicker"
-	picker.dateChangedListeners = []func(DatePicker, time.Time){}
+	picker.dateChangedListeners = []func(DatePicker, time.Time, time.Time){}
 }
 
 func (picker *datePickerData) String() string {
@@ -69,7 +69,7 @@ func (picker *datePickerData) remove(tag string) {
 	switch tag {
 	case DateChangedEvent:
 		if len(picker.dateChangedListeners) > 0 {
-			picker.dateChangedListeners = []func(DatePicker, time.Time){}
+			picker.dateChangedListeners = []func(DatePicker, time.Time, time.Time){}
 			picker.propertyChangedEvent(tag)
 		}
 		return
@@ -94,13 +94,14 @@ func (picker *datePickerData) remove(tag string) {
 
 	case DatePickerValue:
 		if _, ok := picker.properties[DatePickerValue]; ok {
+			oldDate := GetDatePickerValue(picker)
 			delete(picker.properties, DatePickerValue)
 			date := GetDatePickerValue(picker)
 			if picker.created {
 				picker.session.callFunc("setInputValue", picker.htmlID(), date.Format(dateFormat))
 			}
 			for _, listener := range picker.dateChangedListeners {
-				listener(picker, date)
+				listener(picker, date, oldDate)
 			}
 		} else {
 			return
@@ -226,7 +227,7 @@ func (picker *datePickerData) set(tag string, value any) bool {
 					picker.session.callFunc("setInputValue", picker.htmlID(), date.Format(dateFormat))
 				}
 				for _, listener := range picker.dateChangedListeners {
-					listener(picker, date)
+					listener(picker, date, oldDate)
 				}
 				picker.propertyChangedEvent(tag)
 			}
@@ -234,12 +235,12 @@ func (picker *datePickerData) set(tag string, value any) bool {
 		}
 
 	case DateChangedEvent:
-		listeners, ok := valueToEventListeners[DatePicker, time.Time](value)
+		listeners, ok := valueToEventWithOldListeners[DatePicker, time.Time](value)
 		if !ok {
 			notCompatibleType(tag, value)
 			return false
 		} else if listeners == nil {
-			listeners = []func(DatePicker, time.Time){}
+			listeners = []func(DatePicker, time.Time, time.Time){}
 		}
 		picker.dateChangedListeners = listeners
 		picker.propertyChangedEvent(tag)
@@ -318,7 +319,7 @@ func (picker *datePickerData) handleCommand(self View, command string, data Data
 				picker.properties[DatePickerValue] = value
 				if value != oldValue {
 					for _, listener := range picker.dateChangedListeners {
-						listener(picker, value)
+						listener(picker, value, oldValue)
 					}
 				}
 			}
@@ -410,6 +411,6 @@ func GetDatePickerValue(view View, subviewID ...string) time.Time {
 // GetDateChangedListeners returns the DateChangedListener list of an DatePicker subview.
 // If there are no listeners then the empty list is returned
 // If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
-func GetDateChangedListeners(view View, subviewID ...string) []func(DatePicker, time.Time) {
-	return getEventListeners[DatePicker, time.Time](view, subviewID, DateChangedEvent)
+func GetDateChangedListeners(view View, subviewID ...string) []func(DatePicker, time.Time, time.Time) {
+	return getEventWithOldListeners[DatePicker, time.Time](view, subviewID, DateChangedEvent)
 }