ets declarative ui development, how to get the current system time

@Entry
@Component
struct Index {
 @State message: string = 'Hello World'

 build() {
 Row() {
Column() {
 Text(this.message)
 .fontSize(50)
 .fontWeight(FontWeight.Bold).onClick(()=>{
 let date = new Date()

//Get current time
// this.message=date.toLocaleString();
 //day of the week
// this.message=date.getUTCDay().toString();

//date
// this.message=date.getUTCDate().toString();
// //Lunar month
// this.message=date.getUTCMonth().toString();


 this.message=date.getFullYear() + "year" + (date.getMonth() + 1) + "month" + date.getDate() + "day" + date.getHours() + "hour"+ date.getMinutes() + "minutes" + date.getSeconds()+ "seconds"


 })
 }
 .width('100%')
 }
 .height('100%')
 }
}
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