from tkinter import *
import datetime
import pytz

def main():
    root = Tk()
    root.title("Digital Clock")
    root.geometry("400x150")
    drawArea = Canvas(root, bg="silver")
    drawArea.pack(side=TOP, expand=True, fill=BOTH)
    tzMoscow = pytz.timezone("Europe/Moscow")
    tzDushanbe = pytz.timezone("Asia/Dushanbe")
    
    def drawTime():
        # dt = datetime.datetime.now()
        dtMoscow = datetime.datetime.now(tz = tzMoscow)
        txt = "Moscow: {0:02d}:{1:02d}:{2:02d}".format(
            dtMoscow.hour, dtMoscow.minute, dtMoscow.second
        )
        txt += "\n"
        dtDushanbe = datetime.datetime.now(tz = tzDushanbe)
        txt += "Dushanbe: {0:02d}:{1:02d}:{2:02d}".format(
            dtDushanbe.hour, dtDushanbe.minute, dtDushanbe.second
        )
        drawArea.delete("all")
        w = drawArea.winfo_width()
        h = drawArea.winfo_height()
        drawArea.create_text(
            w/2, h/2, text=txt, font=("Times", 24), anchor=CENTER
            # 0, 0, text=txt, font=("Times", 24), anchor=NW
        )
     
    drawArea.bind("<Configure>", lambda e: drawTime())
    
    def animate():
        drawTime()
        drawArea.after(1000, animate)
    
    # root.update()
    drawArea.after(100, animate)
     
    root.mainloop()   
        
if __name__ == "__main__":
    main()