The Label: "Right Text" should be in the right side of the tkinter window. As highlighted in image.
For that I tried below code, but its not on the right.
m_root = Tk()
m_root.wm_state('zoomed')
label_time = Label(m_root, text="Right Text", anchor="e", justify="right").grid()
m_root.mainloop()
label_time.pack(side="right",anchor="n")
This might work. anchor positions the text to the top-right corner.