Time Passage Handling in Unity3D

TimeManipulation.cs

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class TimeManipulation : MonoBehaviour {

    #region Fields and Events
    private static TimeManipulation _current;

    private DateTime lastCheck;

    public delegate void TimeManipulationEventHandler(TimeSpan elapsed);
    public event TimeManipulationEventHandler TimeSkipOccured;
    public event TimeManipulationEventHandler IsNextDay;
    #endregion
    #region Unity's
    // Use this for initialization
    void Start () {
        if (_current == null)
            _current = this;
        else if (_current != this)
            Destroy(gameObject);
        DontDestroyOnLoad(this);

        var now = DateTime.Now;
        if (now.Date == lastCheck.Date.AddDays(1))
            OnIsNextDay(now - lastCheck);
    }

    // Update is called once per frame
    void Update () {
        var now = DateTime.Now;
        var elapsed = now - lastCheck;
        if (elapsed.TotalSeconds > 1)
            OnTimeSkipOccured(elapsed);
        lastCheck = now;
	}
    #endregion
    #region Event Calls
    void OnTimeSkipOccured(TimeSpan ts)
    {
        if (TimeSkipOccured != null)
            TimeSkipOccured(ts);
    }

    void OnIsNextDay(TimeSpan ts)
    {
        if (IsNextDay != null)
            IsNextDay(ts);
    }
    #endregion
    #region Static Methods
    public static TimeManipulation Initialize(long? lastCheck = null)
    {
        if(_current == null)
        {
            var go = new GameObject("TimeManager");
            var tm = go.AddComponent<TimeManipulation>();
            if (lastCheck != null)
                tm.lastCheck = new DateTime(lastCheck.Value);
            else tm.lastCheck = DateTime.Now;
            return tm;
        }
        return _current;
    }

    public static long GetLastCheckTicks()
    {
        if (_current != null)
            return _current.lastCheck.Ticks;
        else return 0;
    }
    #endregion
}