如何获取当前时间然后使用jquery进行比较

this is my code:

这是我的代码:

    var currentTime = new Date()
var month = currentTime.getMonth() + 1
var day = currentTime.getDate()
var year = currentTime.getFullYear()
var hours = currentTime.getHours()
var minutes = currentTime.getMinutes()

alert(minutes+"/"+hours+"/"+month + "/" + day + "/" + year)
    var currentTim