diff --git a/README.md b/README.md
index bddba80..ae2c997 100644
--- a/README.md
+++ b/README.md
@@ -124,13 +124,17 @@ Non Chakra-related configurations :
 
 ### other props: 
 
-Name                  | Type                   | Default value           | Description
-----------------------|------------------------|-------------------------|--------------
-name                  | string                 | undefined               | name attribute for `<input />` element
-usePortal             | boolean                | undefined               | to prevent parent styles from clipping or hiding content
-defaultIsOpen         | boolean                | undefined               | open the date panel at the beginning
-minDate               | Date                   | undefined               | minimum date
-maxDate               | Date                   | undefined               | maximum date
+Name                  | Type                   | Default value           | Description                                            | Single/Range
+----------------------|------------------------|-------------------------|--------------------------------------------------------|---------------
+name                  | string                 | undefined               | name attribute for `<input />` element                  | both
+usePortal             | boolean                | undefined               | to prevent parent styles from clipping or hiding content| both
+defaultIsOpen         | boolean                | undefined               | open the date panel at the beginning                    | both
+minDate               | Date                   | undefined               | minimum date                                            | both
+maxDate               | Date                   | undefined               | maximum date                                            | both
+onMonthViewChange     | ({calendars, offset}: {calendars: Calendar[]; offset: number;}) => void | undefined | runs when the current month is changed | single
+onPopoverOpen         | () => void             | undefined               | runs when the calendar popover is opened  | single
+customDateButton      | (dateObj: DateObjExtended, { dateProps, btnProps }: CustomDateButtonProps) => ReactElement; | undefined | custom date button renderer that replaces the original one | single
+
 
 For version < `npm@0.1.6`:</br>
 `dayOfMonthBtnProps` extends from `ButtonProps` and has only `selectedBg` support,
diff --git a/src/components/calendarPanel.tsx b/src/components/calendarPanel.tsx
index 1ee8370..f79fe0f 100644
--- a/src/components/calendarPanel.tsx
+++ b/src/components/calendarPanel.tsx
@@ -10,7 +10,12 @@ import {
 import { useDayzed, Props as DayzedHookProps } from 'dayzed';
 import { ArrowKeysReact } from '../utils/reactKeysArrow';
 import React, { useCallback, useMemo } from 'react';
-import { CalendarConfigs, DatepickerProps } from '../utils/commonTypes';
+import {
+  CalendarConfigs,
+  DatepickerProps,
+  CustomDateButton,
+  OnMonthViewChange,
+} from '../utils/commonTypes';
 import { DatepickerBackBtns, DatepickerForwardBtns } from './dateNavBtns';
 import { DayOfMonth } from './dayOfMonth';
 
@@ -19,6 +24,8 @@ interface CalendarPanelProps extends DatepickerProps {
   configs: CalendarConfigs;
   onMouseEnterHighlight?: (date: Date) => void;
   isInRange?: (date: Date) => boolean | null;
+  onMonthViewChange?: OnMonthViewChange;
+  customDateButton?: CustomDateButton;
 }
 
 export const CalendarPanel: React.FC<CalendarPanelProps> = ({
@@ -27,6 +34,8 @@ export const CalendarPanel: React.FC<CalendarPanelProps> = ({
   propsConfigs,
   onMouseEnterHighlight,
   isInRange,
+  onMonthViewChange,
+  customDateButton,
 }) => {
   const renderProps = useDayzed(dayzedHookProps);
   const { calendars, getBackProps, getForwardProps } = renderProps;
@@ -96,6 +105,7 @@ export const CalendarPanel: React.FC<CalendarPanelProps> = ({
                 calendars={calendars}
                 getBackProps={getBackProps}
                 propsConfigs={propsConfigs}
+                onMonthViewChange={onMonthViewChange}
               />
               <Heading size="sm" minWidth={'5rem'} textAlign="center">
                 {configs.monthNames[calendar.month]} {calendar.year}
@@ -104,6 +114,7 @@ export const CalendarPanel: React.FC<CalendarPanelProps> = ({
                 calendars={calendars}
                 getForwardProps={getForwardProps}
                 propsConfigs={propsConfigs}
+                onMonthViewChange={onMonthViewChange}
               />
             </HStack>
             <Divider />
@@ -128,6 +139,7 @@ export const CalendarPanel: React.FC<CalendarPanelProps> = ({
                       onMouseEnter={() => {
                         if (onMouseEnterHighlight) onMouseEnterHighlight(date);
                       }}
+                      customDateButton={customDateButton}
                     />
                   );
                 });
diff --git a/src/components/dateNavBtns.tsx b/src/components/dateNavBtns.tsx
index f49be6b..bb3a1c8 100644
--- a/src/components/dateNavBtns.tsx
+++ b/src/components/dateNavBtns.tsx
@@ -1,11 +1,15 @@
 import { Button, ButtonProps } from '@chakra-ui/react';
 import { Calendar, GetBackForwardPropsOptions } from 'dayzed';
-import React, { Fragment } from 'react';
-import { DatepickerProps } from '../utils/commonTypes';
+import React from 'react';
+import {
+  DatepickerProps,
+  OnMonthViewChange,
+} from '../utils/commonTypes';
 
 export interface DatepickerBackBtnsProps extends DatepickerProps {
   calendars: Calendar[];
   getBackProps: (data: GetBackForwardPropsOptions) => Record<string, any>;
+  onMonthViewChange?: OnMonthViewChange;
 }
 
 const DefaultBtnStyle: ButtonProps = {
@@ -16,60 +20,77 @@ const DefaultBtnStyle: ButtonProps = {
 export const DatepickerBackBtns: React.FC<DatepickerBackBtnsProps> = (
   props
 ) => {
-  const { calendars, getBackProps } = props;
+  const { calendars, getBackProps, onMonthViewChange } = props;
   const customBtnProps = props.propsConfigs?.dateNavBtnProps;
+
+  const backProps = getBackProps({ calendars });
+  const backPropsWithOffset = getBackProps({ calendars, offset: 12 });
   return (
-    <Fragment>
+    <>
       <Button
-        {...getBackProps({
-          calendars,
-          offset: 12,
-        })}
+        {...backPropsWithOffset}
         {...DefaultBtnStyle}
         {...customBtnProps}
+        onClick={(e) => {
+          onMonthViewChange && onMonthViewChange({ calendars, offset: -12 })
+          backPropsWithOffset.onClick(e)
+        }}
       >
         {'<<'}
       </Button>
       <Button
-        {...getBackProps({ calendars })}
+        {...backProps}
         {...DefaultBtnStyle}
         {...customBtnProps}
+        onClick={(e) => {
+          onMonthViewChange && onMonthViewChange({ calendars, offset: -1 })
+          backProps.onClick(e)
+        }}
       >
         {'<'}
       </Button>
-    </Fragment>
+    </>
   );
 };
 
 export interface DatepickerForwardBtnsProps extends DatepickerProps {
   calendars: Calendar[];
   getForwardProps: (data: GetBackForwardPropsOptions) => Record<string, any>;
+  onMonthViewChange?: OnMonthViewChange;
 }
 
 export const DatepickerForwardBtns: React.FC<DatepickerForwardBtnsProps> = (
   props
 ) => {
-  const { calendars, getForwardProps } = props;
+  const { calendars, getForwardProps, onMonthViewChange } = props;
   const customBtnProps = props.propsConfigs?.dateNavBtnProps;
+
+  const forwardProps = getForwardProps({ calendars });
+  const forwardPropsWithOffset = getForwardProps({ calendars, offset: 12 });
   return (
-    <Fragment>
+    <>
       <Button
-        {...getForwardProps({ calendars })}
+        {...forwardProps}
         {...DefaultBtnStyle}
         {...customBtnProps}
+        onClick={(e) => {
+          onMonthViewChange && onMonthViewChange({ calendars, offset: 1 })
+          forwardProps.onClick(e)
+        }}
       >
         {'>'}
       </Button>
       <Button
-        {...getForwardProps({
-          calendars,
-          offset: 12,
-        })}
+        {...forwardPropsWithOffset}
         {...DefaultBtnStyle}
         {...customBtnProps}
+        onClick={(e) => {
+          onMonthViewChange && onMonthViewChange({ calendars, offset: 12 })
+          forwardPropsWithOffset.onClick(e)
+        }}
       >
         {'>>'}
       </Button>
-    </Fragment>
+    </>
   );
 };
diff --git a/src/components/dayOfMonth.tsx b/src/components/dayOfMonth.tsx
index e109417..19eab40 100644
--- a/src/components/dayOfMonth.tsx
+++ b/src/components/dayOfMonth.tsx
@@ -1,13 +1,18 @@
 import { Button } from '@chakra-ui/react';
 import { DateObj, RenderProps } from 'dayzed';
 import React, { useMemo } from 'react';
-import { DatepickerProps, DayOfMonthBtnStyleProps } from '../utils/commonTypes';
+import {
+  CustomDateButton,
+  DatepickerProps,
+  DayOfMonthBtnStyleProps,
+} from '../utils/commonTypes';
 
 interface DayOfMonthProps extends DatepickerProps {
   renderProps: RenderProps;
   isInRange?: boolean | null;
   dateObj: DateObj;
   onMouseEnter?: React.MouseEventHandler<HTMLButtonElement> | undefined;
+  customDateButton?: CustomDateButton;
 }
 
 const halfGap = 0.125; //default Chakra-gap-space-1 is 0.25rem
@@ -18,6 +23,7 @@ export const DayOfMonth: React.FC<DayOfMonthProps> = ({
   isInRange,
   renderProps,
   onMouseEnter,
+  customDateButton,
 }) => {
   const { date, selected, selectable, today } = dateObj;
   const { getDateProps } = renderProps;
@@ -77,7 +83,19 @@ export const DayOfMonth: React.FC<DayOfMonthProps> = ({
     ]
   );
 
-  return (
+  return customDateButton ? (
+    customDateButton(
+      { ...dateObj, isInRange },
+      {
+        dateProps: getDateProps({
+          dateObj,
+          disabled: !selectable,
+          onMouseEnter,
+        }),
+        btnProps: styleBtnProps,
+      }
+    )
+  ) : (
     <Button
       {...getDateProps({
         dateObj,
diff --git a/src/index.tsx b/src/index.tsx
index a15f69d..47d8562 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -1,4 +1,10 @@
-export type { DatepickerConfigs } from './utils/commonTypes';
+export type {
+  DatepickerConfigs,
+  CustomDateButton,
+  OnMonthViewChange,
+  DateObjExtended,
+  CustomDateButtonProps,
+} from './utils/commonTypes';
 export * from './utils/calanderUtils';
 export * from './single';
 export * from './range';
diff --git a/src/single.tsx b/src/single.tsx
index 574661e..758b0c9 100644
--- a/src/single.tsx
+++ b/src/single.tsx
@@ -10,13 +10,19 @@ import {
 } from '@chakra-ui/react';
 import { format } from 'date-fns';
 import FocusLock from 'react-focus-lock';
-import { Month_Names_Short, Weekday_Names_Short } from './utils/calanderUtils';
+import {
+  Month_Names_Short,
+  Weekday_Names_Short,
+  DATE_FORMAT,
+} from './utils/calanderUtils';
 import { CalendarPanel } from './components/calendarPanel';
 import {
   CalendarConfigs,
   DatepickerConfigs,
   DatepickerProps,
   OnDateSelected,
+  CustomDateButton,
+  OnMonthViewChange,
 } from './utils/commonTypes';
 
 export interface SingleDatepickerProps extends DatepickerProps {
@@ -28,10 +34,13 @@ export interface SingleDatepickerProps extends DatepickerProps {
   id?: string;
   name?: string;
   usePortal?: boolean;
+  onMonthViewChange?: OnMonthViewChange;
+  customDateButton?: CustomDateButton;
+  onPopoverOpen?: () => void;
 }
 
 const DefaultConfigs: CalendarConfigs = {
-  dateFormat: 'yyyy-MM-dd',
+  dateFormat: DATE_FORMAT,
   monthNames: Month_Names_Short,
   dayNames: Weekday_Names_Short,
   firstDayOfWeek: 0,
@@ -52,6 +61,9 @@ export const SingleDatepicker: React.FC<SingleDatepickerProps> = ({
     id,
     minDate,
     maxDate,
+    onMonthViewChange,
+    customDateButton,
+    onPopoverOpen,
   } = props;
 
   const [dateInView, setDateInView] = useState(selectedDate);
@@ -89,7 +101,10 @@ export const SingleDatepicker: React.FC<SingleDatepickerProps> = ({
       placement="bottom-start"
       variant="responsive"
       isOpen={isOpen}
-      onOpen={onOpen}
+      onOpen={() => {
+        onPopoverOpen && onPopoverOpen();
+        onOpen();
+      }}
       onClose={onPopoverClose}
       isLazy
     >
@@ -133,6 +148,8 @@ export const SingleDatepicker: React.FC<SingleDatepickerProps> = ({
                 }}
                 configs={calendarConfigs}
                 propsConfigs={propsConfigs}
+                onMonthViewChange={onMonthViewChange}
+                customDateButton={customDateButton}
               />
             </FocusLock>
           </PopoverBody>
diff --git a/src/utils/calanderUtils.ts b/src/utils/calanderUtils.ts
index cafc41a..40848ea 100644
--- a/src/utils/calanderUtils.ts
+++ b/src/utils/calanderUtils.ts
@@ -37,3 +37,5 @@ export const Weekday_Names_Short = [
   'Fri',
   'Sat',
 ];
+
+export const DATE_FORMAT: string = 'yyyy-MM-dd';
diff --git a/src/utils/commonTypes.ts b/src/utils/commonTypes.ts
index 2546854..327ee92 100644
--- a/src/utils/commonTypes.ts
+++ b/src/utils/commonTypes.ts
@@ -1,7 +1,8 @@
 import { ButtonProps } from '@chakra-ui/button';
 import { InputProps, PopoverBodyProps } from '@chakra-ui/react';
 import { PopoverContentProps } from '@chakra-ui/react';
-import { DateObj } from 'dayzed';
+import { DateObj, Calendar } from 'dayzed';
+import { ReactElement } from 'react';
 
 export type OnDateSelected = (
   selectedDate: DateObj,
@@ -46,3 +47,25 @@ export interface CalendarConfigs {
   dayNames: string[];
   firstDayOfWeek: 0 | 1 | 2 | 3 | 4 | 5 | 6;
 }
+
+export type DateObjExtended = DateObj & {
+  isInRange: boolean | null | undefined;
+};
+
+export type CustomDateButtonProps = {
+  dateProps: Record<string, unknown>;
+  btnProps: DayOfMonthBtnStyleProps;
+};
+
+export type OnMonthViewChange = ({
+  calendars,
+  offset,
+}: {
+  calendars: Calendar[];
+  offset: number;
+}) => void;
+
+export type CustomDateButton = (
+  dateObj: DateObjExtended,
+  { dateProps, btnProps }: CustomDateButtonProps
+) => ReactElement;