Python timer stops at random times - python-3.x

Question

Just a warning, my code uses the pyperclip module but you don't have to pip install it because it is just for cosmetic reasons to make it a little easier. It also reads a file but the contents in the file is not important right now and can be replaced with any file with strings separated by lines.
What I want my code to do is:
WORKING 1. I want to be able to enter in a value for each line in the file, the first number representing hours and the second representing minutes.
NOT WORKING 2. I want to start a timer for for the hours and minutes for each time inputted. After I will add a sound but that is not there yet.
Problem: I input 1 minute for it to count down and it randomly stops in the middle of the count down. I don't know why because sometimes it finishes and sometimes it doesn't.
Code: https://pastebin.com/A2tTHtmK
import re
import pyperclip
from collections import OrderedDict
import time
import sys
import winsound
islandAndTimes = {}
fileObject = open("C:\\Users\\harry\\Desktop\\Skyblock Island bossmob warps.txt", "r")
message = fileObject.read()
whatToSearch = re.compile(r'\/is warp \w+')
l1 = whatToSearch.findall(message)
for eachInList in l1:
pyperclip.copy(eachInList)
typeIslandTime = input("How long until it spawns? (hours, minutes) ")
islandAndTimes[eachInList] = typeIslandTime
newIslandAndTimes = OrderedDict(sorted(islandAndTimes.items(), key=lambda t: t[1]))
if typeIslandTime == "0":
del islandAndTimes[eachInList]
print(newIslandAndTimes)
for everyIsland in newIslandAndTimes:
for firstKey, firstValue in newIslandAndTimes.items():
print("\n")
print(firstKey)
splitValues = firstValue.split()
newHours = int(splitValues[0])
newSecond = 0
newMins = int(splitValues[1])
print(newHours, newMins)
hour = time.strftime("%H")
minute = time.strftime("%M")
print("The hour is " + hour + " the minute is " + minute)
newerHours = newHours + int(hour)
newerMinute = newMins + int(minute)
print("total secodns is " + str(int((int(newHours) * 60 * 60) + int(newMins) * 60)-20))
totalSeconds = int(newHours) * 60 * 60 + int(newMins) * 60-20
while newSecond != 19:
time.sleep(1)
if int(hour) < newerHours or int(minute) < newerMinute:
#int(hour) > newerHours or int(minute) > newerMinute
minute = time.strftime("%M")
hour = time.strftime("%H")
second = time.strftime("%S")
sys.stdout.write('\r' + str("Time until ring: " + str(newHours) + " " + str(newMins) + " " + str(newSecond)))
sys.stdout.flush()
if newSecond == 0:
newSecond = 60
newMins = newMins - 1
elif newMins == 0 and newHours > 0:
newHours = newHours - 1
newSecond = newSecond - 1
print('completed')