Clock

Does this code seem correctly written?

SuperStrict 
Graphics 128,128

Local clock:TClock = TClock.Create()

While Not KeyDown(KEY_ESCAPE)
    Cls
		clock.Update()
		clock.Draw()
	Flip 1
Wend
End


Type TClock
	Field Time:Int
	Field timeArr:Int[] = [0,0,0]
	Field timeStr:String
	Field x:Int = 0
	Field y:Int = 0
	
	Function Create:TClock()
		Local t:TClock = New TClock
		t.Time = MilliSecs()
		Return t
	End Function
	
	Method Update()
		timeStr = ""
		If MilliSecs() >= Time Then
			Time :+ 10
			timeArr[2]:+1
			If timeArr[2] >= 100 Then 
				timeArr[1]:+1
				timeArr[2] = 0
				If timeArr[1] >= 60 Then
					timeArr[0]:+1
					timeArr[1] = 0
				End If
			End If
		End If
		
		For Local i:Int = 0 Until 3
			If i><0 Then timeStr:+":" 
			If timeArr[i] < 10 Then
				timeStr:+"0"+timeArr[i] 
			Else
				timeStr:+timeArr[i] 
			End If
		Next 
	End Method 

	Method Draw()
		DrawText timeStr,x,y
	End Method 
End Type