An Alarm Clock coded in Python 3. Run 'Alarm Clock.py' in a terminal if you have Python 3.

Alarm Clock.py

from tkinter import *
import datetime
import time
import winsound

def alarm(set_alarm_timer):
    while True:
        time.sleep(1)
        current_time = datetime.datetime.now()
        now = current_time.strftime("%H:%M:%S")
        date = current_time.strftime("%d/%m/%Y")
        print("The Time is:",date)
        print(now)
        if now == set_alarm_timer:
            print("Time to Wake up!")
            winsound.PlaySound("sound.wav",winsound.SND_ASYNC)
            break

def actual_time():
    set_alarm_timer = f"{hour.get()}:{min.get()}:{sec.get()}"
    alarm(set_alarm_timer)

clock = Tk()
clock.title("Alarm Clock")
clock.geometry("300x200")
time_format=Label(clock, text= "Enter time in the 24-hour format!", fg="green",font="Arial").place(x=36,y=120)
addTime = Label(clock,text = "Hr      Min      Sec",font=("Calibri",13,"normal")).place(x = 110)
setYourAlarm = Label(clock,text = "Alarm Time:",fg="blue",font=("Helevetica",11,"bold")).place(x=15, y=29)

hour = StringVar()
min = StringVar()
sec = StringVar()

hourTime= Entry(clock,textvariable = hour,bg = "pink",width = 15).place(x=110,y=30)
minTime= Entry(clock,textvariable = min,bg = "pink",width = 15).place(x=150,y=30)
secTime = Entry(clock,textvariable = sec,bg = "pink",width = 15).place(x=200,y=30)

submit = Button(clock,text = "Set Alarm",fg="red",width = 10,command = actual_time).place(x =110,y=70)

clock.mainloop()