Time stamp with progress bar with kivyMD

Question

Hello fellow stackers I am making a meditation app with kivyMD, and I'm wondering how to add a time stamp to the progress bar. The same time stamp you would see on any music app for example: 0:00 - 0:00, thanks and have a good one.

here is my python code:

    def update_progress(self, dt):
    if self.progress < self.length:
        self.progress += 1 # Update value.
    else: # End case.
        self.progress = 0 # Reset value.
        self.prog_ev.cancel() # Stop updating.

kivy file:

    MDIconButton:
    id: my_sound
    icon: "pause" if root.progress else "play"
    user_font_size: 150
    pos_hint: {"center_x": .5, "center_y": .2}
    on_press:
        root.play_sound()

MDProgressBar:
    id: progress_bar
    size_hint: .8, .5
    pos_hint: {"center_x": .5, "center_y": .3}
    min: 0
    max: root.length
    value: root.progress