added TimeSystem

Assets/Scripts/TimeManager.cs

@@ -0,0 +1,26 @@
+using System;
+using UnityEngine;
+
+public class TimeManager : MonoBehaviour
+{
+    [SerializeField]
+    float intervalTime = 1.0f; // 1.0f -> 1 real second is 1 ingame minute
+
+    [SerializeField]
+    int minutesPerInterval = 1;
+
+    DateTime dateTime = new DateTime(1, 1, 1, 0, 0, 0);
+
+    public string GetTime() => dateTime.ToString("hh:mm tt");
+    public string GetDate() => dateTime.ToString("dd/mm/yyyy");
+
+    void Start()
+    {
+        InvokeRepeating("TimeUp", intervalTime, intervalTime);    
+    }
+
+    void TimeUp()
+    {
+        dateTime = dateTime.AddMinutes(minutesPerInterval);
+    }
+}