Python Alarm Clock

import tkinter as tk
import datetime as dt
import playsound as ps

def checkTime(hr, mn):
    chr = dt.datetime.now().hour
    cmn = dt.datetime.now().minute

    if chr == hr and cmn == mn:
        print("Alarm going off!")
        ps.playsound("alarm.mp3", block=False)
    else:
        window.after(1000, lambda: checkTime(hr, mn))

def setAlarm():
    hr = ent_hr.get()
    mn = ent_min.get()
    print(f"Alarm set for {hr}:{mn}.")
    checkTime(int(hr), int(mn))

window = tk.Tk()

window.title("Alarm Clock")

lbl_hr = tk.Label(text = "Hour: ")
lbl_min = tk.Label(text = "Minute: ")

ent_hr = tk.Entry()
ent_min = tk.Entry()

btn_set = tk.Button(text="Set Alarm", command=setAlarm)

lbl_hr.grid(row = 0, column = 0, padx=(30, 2), pady=(15, 2))
lbl_min.grid(row = 1, column = 0, padx=(30, 2), pady=(2, 30))
ent_hr.grid(row = 0, column = 1, padx = (2, 30), pady=(15,2))
ent_min.grid(row = 1, column = 1, padx=(2, 30), pady=(2, 5))
btn_set.grid(row = 2, column = 0, columnspan = 2, pady=(0, 15))

window.mainloop()