Raspberry Pi - Python - Door Alarm

import RPi.GPIO as GPIO
from time import time
from time import sleep


GPIO.setmode(GPIO.BOARD)
doorSwitch = 11
buzzer = 15


GPIO.setup(doorSwitch, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(buzzer, GPIO.OUT)
GPIO.output(buzzer, 0)

doorStatus = 0
openTime = time()


try:
        while True:
                if GPIO.input(doorSwitch) == 1 and doorStatus == 0:
                        openTime = time()
                        doorStatus = 1
                        print("Door is Open")
                if GPIO.input(doorSwitch) == 1 and doorStatus == 1:
                        if time() - openTime >= 120:
                                print("Open 2 minutes")
                                GPIO.output(buzzer, 1)
                                sleep(5)
                                GPIO.output(buzzer, 0)
                                sleep(1)
                        if time() - openTime >= 30 and time() - openTime < 120:
                                print("Open 30 seconds")
                                GPIO.output(buzzer, 1)
                                sleep(1)
                                GPIO.output(buzzer, 0)
                                sleep(3)
                if GPIO.input(doorSwitch) == 0 and doorStatus == 1:
                        doorStatus = 0
                        GPIO.output(buzzer, 0)
                        print("Door is Closed")

except KeyboardInterrupt:
        GPIO.cleanup()