A list,

Based on MATLAB GUI clock design

Ii. Source code

function varargout = clockfjnu(varargin)
% CLOCKFJNU M-file for clockfjnu.fig
%      CLOCKFJNU, by itself, creates a new CLOCKFJNU or raises the existing
%      singleton*.
%
%      H = CLOCKFJNU returns the handle to a new CLOCKFJNU or the handle to
%      the existing singleton*.
%
%      CLOCKFJNU('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in CLOCKFJNU.M with the given input arguments.
%
%      CLOCKFJNU('Property'.'Value',...). creates anew CLOCKFJNU or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before clockfjnu_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to clockfjnu_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one % instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help clockfjnu

% Last Modified by GUIDE v2. 5 23-Jun- 2021. 22:44:21

% Begin initialization code - DO NOT EDIT

gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @clockfjnu_OpeningFcn, ...
                   'gui_OutputFcn',  @clockfjnu_OutputFcn, ...
                   'gui_LayoutFcn', [],...'gui_Callback'[]);if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end








if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
    
end
% End initialization code - DO NOT EDIT


% --- Executes just before clockfjnu is made visible.
function clockfjnu_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to clockfjnu (see VARARGIN)

% Choose default command line output for clockfjnu

handles.output = hObject;

global  Title;
Title=Beijing Time;

global VarTime;
VarTime=0;
TimeZoneString=get(handles.TimeZone,'String');
TimeZoneStingSize=size(TimeZoneString);

for i=1:TimeZoneStingSize(1% Time zone selection. GMT+ is selected by default08:00Beijing timeif  strcmp( TimeZoneString{i},'(GMT+08:00) Beijing Time ')
     set(handles.TimeZone,'value',i); The % of Beijingbreak;
    end
end

handles.t=timer('ExecutionMode'.'fixedRate' ,'TimerFcn',{@TimeUpdate,handles},'Period'.1);
start(handles.t);
set(gcf, 'DeleteFcn', {@DeleteFcn, handles.t}); % Sets the window destruction callback function global hh; global hm; global hs; axes(handles.axes1);set(hObject,'NumberTitle'.'off');
set(hObject,'MenuBar'.'none');
set(hObject,'visible'.'on'); 
A=linspace(0.6.3.1000); %0to6.3between1000A point x1 =8*cos(A);
y1=8*sin(A); % Set the corresponding x and y values of the outer circle x2=7*cos(A);
y2=7*sin(A); % Set the x,y values of the inner circle to plot(x1,y1,'b'.'linewidth'.1)
hold on
plot(x2,y2,'b'.'linewidth'.3.5.'color'[0 0 0])
fill(0.4*cos(A),0.4*sin(A),'r'); Axis off; % Cancel axis to display axis equal; % of axes X,y, etcfor k=1:12; Clock dial12Divide and write the corresponding1.2..12.Digital xk =9*cos(2 -*pi/12*k+pi/2); 
yk=9*sin(2 -*pi/12*k+pi/2); 
plot([xk/9*8 xk/9*7],[yk/9*8 yk/9*7].'color'[1 0 0])
h=text(xk,yk,num2str(k),'fontsize'.16.'color'. [1 0 0].'HorizontalAlignment'.'center');
end


set(handles.TimeZoneStr,'string',Title); % Clock position ti=clock; th=-(ti(4)+ti(5) /60+ti(6) /3600) /12*2*pi+pi/2;
xh3=4.0*cos(th);
yh3=4.0*sin(th);
xh2=xh3/2+0.5*cos(th-pi/2);
yh2=yh3/2+0.5*sin(th-pi/2);
xh4=xh3/20.5*cos(th-pi/2);
yh4=yh3/20.5*sin(th-pi/2);
 hh=fill([0 xh2 xh3 xh4 0], [0 yh2 yh3 yh4 0], [1 0 0]); % Calculate the minute hand position tm=-(ti(5)+ti(6) /60) /60*2*pi+pi/2;
xm3=6.0*cos(tm);
ym3=6.0*sin(tm);
xm2=xm3/2+0.5*cos(tm-pi/2);
ym2=ym3/2+0.5*sin(tm-pi/2);
xm4=xm3/20.5*cos(tm-pi/2);
ym4=ym3/20.5*sin(tm-pi/2);
hm=fill([0 xm2 xm3 xm4 0], [0 ym2 ym3 ym4 0], [0 1 0]); % Calculate the second hand position ts=-(ti(6)) /60*2*pi+pi/2;
hs=plot([0 7*cos(ts)],[0 7*sin(ts)],...
'color'[0 0 1].'linewidth'.3);

set(gcf,'doublebuffer'.'on');




guidata(hObject, handles);

% UIWAIT makes clockfjnu wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = clockfjnu_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;








function date_Callback(hObject, eventdata, handles)
% hObject    handle to date (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of date as text
%        str2double(get(hObject,'String')) returns contents of date as a double


% --- Executes during object creation, after setting all properties.
function date_CreateFcn(hObject, eventdata, handles)
% hObject    handle to date (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0.'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor'.'white');
end
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3. Operation results

Fourth, note

Version: 2014 a