I need help with simple timescript

public class Timescript : MonoBehaviour {

 public int maxTime = 24;
 public int Maxyear = 365;

 public float theTime;
 public float day;

 // Use this for initialization
 void Start()
 {
     theTime = 0;
 }

 // Update is called once per frame
 void Update()
 {
     if (theTime < maxTime)
     {
         theTime += 3 * Time.deltaTime;

     }
     if (theTime == maxTime)
     {
         day =+ 1;
         theTime = 0;
     }
     if (day == Maxyear)
     {
         Endgame();
     }

 }

 void Endgame()
 {

 }
 

}

Problem

When theTime = 24, i want it to add a day. But when it reaches the number. It stops. Im not sure what Im doing wrong...

Thank U for taking your time and helping me.

Note: Im new on Unity so try to explain stuff...

thanks