scriptable - 如何在脚本中更新时间（在小部件中）

Question

我尝试制作一个小部件，它基本上显示时间，但我不知道如何更新时间。
这是我的小部件代码：

var date = new Date();
var t1 = date.getHours();
var t2 = date.getMinutes();
var t3 = date.getSeconds();
var t = t1 + ":" + t2 + ":" + t3;


function widget(t) {
  let widget = new ListWidget()
  
  let text = widget.addText("Time:")
  text.font = Font.semiboldSystemFont(20);
  text.centerAlignText()

  let time = widget.addText(t.toString(10));
  time.font = Font.semiboldSystemFont(20);
  time.centerAlignText()
  
  let startColor = new Color("#3050cc")
  let endColor = new Color("#050530")
  let gradient = new LinearGradient()
  gradient.colors = [startColor, endColor]
  gradient.locations = [0.0, 1]
  widget.backgroundGradient = gradient
  widget.backgroundColor = new Color("#ff5401")

  return widget
}


let myWidget = widget(t)
Script.setWidget(myWidget)
Script.complete()

感谢您的每一次帮助！