<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <div id="return"></div> <script> function time1 (){ var time = new Date() var year = time.getFullYear() var month = time.getMonth() + 1 var date = time.getDate(); var day = time.getDay() var hour = time.getHours() var minute = time.getMinutes() var second = time.getSeconds() if (hour > 12) { str = "pm" } else { str = "am" } document.getElementById("return").innerHTML = year + "年" + month + "月" + date + "日" + " " + "星期" + day + " " + hour + ":" + minute + ":" + second + " " + " " + str } setInterval("time1()",1000) </script> </body> </html>