Help with Code for Custom Timer

I'm trying to build a custom timer but my code doesn't seem to function properly. There are 5 switches that control 1 LED each. When each is pressed they light the LED for a set period of time and when the time is up, a piezo buzzer goes off until the reset button is pressed. I really new to programming the arduino, but I thought I had a pretty good program until I tried to run it. Any guidance would be greatly appreciated!

Code is as follows:

/* 5 buttons each representing 30, 60, 90, 120, 180 seconds, when pressed, will illuminate their corresponding LED
and after the time duration is complete, a piezo buzzer will pulse until the reset button is pressed.
*/

// constants that will not change. Used to set pin designations.
const int led30Pin = 13;
const int button30Pin = 12;
const int led60Pin = 11;
const int button60Pin = 10;
const int led90Pin = 9;
const int button90Pin = 8;
const int led120Pin = 7;
const int button120Pin = 6;
const int led180Pin = 5;
const int button180Pin = 4;
const int resetPin = 3;
const int buzzerPin = 2;

// variables that will change
int button30State = 0;
int button60State = 0;
int button90State = 0;
int button120State = 0;
int button180State = 0;
int resetState = 0;
int timeState = 0;

void setup()
{
  // initialize pins as outputs
  pinMode(led30Pin, OUTPUT);
  pinMode(led60Pin, OUTPUT);
  pinMode(led90Pin, OUTPUT);
  pinMode(led120Pin, OUTPUT);
  pinMode(led180Pin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);

  //initialize pins as inputs
  pinMode(button30Pin, INPUT);
  pinMode(button60Pin, INPUT);
  pinMode(button90Pin, INPUT);
  pinMode(button120Pin, INPUT);
  pinMode(button180Pin, INPUT);
  pinMode(resetPin, INPUT);
 
}

void loop()
{
   // read the state of the pushbutton values:
  resetState = digitalRead(resetPin);
  button30State = digitalRead(button30Pin);
  button60State = digitalRead(button60Pin);
  button90State = digitalRead(button90Pin);
  button120State = digitalRead(button120Pin);
  button180State = digitalRead(button180Pin);

  // check if the pushbutton is pressed.
  // if it is, set all LEDs and buzzer LOW:
  if (resetState == HIGH)
  {    
    // turn LEDs and buzzer off:   
    digitalWrite(led30Pin, LOW); 
    digitalWrite(led60Pin, LOW);
    digitalWrite(led90Pin, LOW);
    digitalWrite(led120Pin, LOW);
    digitalWrite(led180Pin, LOW);
    digitalWrite(buzzerPin, LOW);
  }
  // check if pushbutton is pressed.
  //if it is, set led##Pin HIGH and start timerState decrements.
  //when timeState reaches 0, turn buzzerPin HIGH.
  if (button30State == HIGH)
  {
    //turn led30Pin on
    digitalWrite(led30Pin, HIGH);
    (timeState == 30);
    if(timeState > 0);
    delay (1000);
    (timeState --);
    if(timeState == 0);
    digitalWrite(buzzerPin, HIGH); 
  }
  if(button60State ==HIGH)
  {
    digitalWrite(led60Pin, HIGH);
    (timeState == 60);
    if(timeState > 0);
    delay (1000);
    (timeState --);
    if(timeState == 0);
    digitalWrite(buzzerPin, HIGH);
  }
   if(button90State ==HIGH)
  {
    digitalWrite(led90Pin, HIGH);
    (timeState == 90);
    if(timeState > 0);
    delay (1000);
    (timeState --);
    if(timeState == 0);
    digitalWrite(buzzerPin, HIGH);
  }
  if(button120State ==HIGH)
  {
    digitalWrite(led120Pin, HIGH);
    (timeState == 120);
    if(timeState > 0);
    delay (1000);
    (timeState --);
    if(timeState == 0);
    digitalWrite(buzzerPin, HIGH);
  }
  if(button180State ==HIGH)
  {
    digitalWrite(led180Pin, HIGH);
    (timeState == 180);
    if(timeState > 0);
    delay (1000);
    (timeState --);
    if(timeState == 0);
    digitalWrite(buzzerPin, HIGH);
  }
  //otherwise turn all output pins LOW.
  else {
  digitalWrite(buzzerPin, LOW);
  digitalWrite(led30Pin, LOW);
  digitalWrite(led60Pin, LOW);
  digitalWrite(led90Pin, LOW);
  digitalWrite(led120Pin, LOW);
  digitalWrite(led180Pin, LOW);
  }
}