Initial. Added files

Assets/Scripts/Managers/TimeManager.cs

@@ -0,0 +1,26 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class TimeManager : MonoBehaviour
+{
+    public static TimeManager instance = null;
+    public float CurrentTime;
+    void Start()
+    {
+        if (instance == null)
+        {
+            instance = this;
+            instance.CurrentTime = 0f;
+        }
+        else
+        {
+            Debug.LogError("Only one Instance");
+            Destroy(gameObject);
+        }
+    }
+    void Update()
+    {
+        CurrentTime += Time.deltaTime;
+    }
+}