Raspberry Pi - Python - SQLite - Door Alarm

import sqlite3
import RPi.GPIO as GPIO
from time import time
from time import sleep
from datetime import datetime

GPIO.setmode(GPIO.BOARD)
doorSwitch = 11
buzzer = 15
dbConn = sqlite3.connect('door.db')
dbC = dbConn.cursor()

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

doorStatus = 0
openTime = 0
dbTimeStamp = datetime.now().strftime('%y/%m/%d %H:%M:%S')


def saveDB(time, status):
    dbC.execute('INSERT INTO RDStatus (DateTime, Status) VALUES (?, ?)', (time, status))
    dbConn.commit()


dbC.execute('CREATE TABLE IF NOT EXISTS RDStatus(DateTime DATETIME, Status TEXT)')


try:
    while True:
        if GPIO.input(doorSwitch) == 1 and doorStatus == 0:
            dbTimeStamp = datetime.now().strftime('%y/%m/%d %H:%M:%S')
            openTime = time()
            doorStatus = 1
            print("Door is Open")
            saveDB(dbTimeStamp, "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:
            dbTimeStamp = datetime.now().strftime('%y/%m/%d %H:%M:%S')
            doorStatus = 0
            GPIO.output(buzzer, 0)
            print("Door is Closed")
            saveDB(dbTimeStamp, "Closed")


except KeyboardInterrupt:
    GPIO.cleanup()
    dbC.close()
    dbConn.close()