Java script time compare with given time

Question

Ok I cant get my head round this, ive looked at so many posts on SF but cant figure it out.
I need to campare server time with hardcorded time.

i have try this

            var breackfastCutOffTime    = "5:30";
            var lunchCutOffTime         = "10:00";
            var dinnerCutOffTime        = "17:00";


            var serverTime = currentDate.getHours()+ ":" + currentDate.getMinutes();              

            if(Date.parse(toDay) ==  Date.parse(selectedDate)){
                if(serverTime >= breackfastCutOffTime ){
                    document.getElementById("breakfast").disabled = true;
                }else if(serverTime >= lunchCutOffTime){
                    document.getElementById("lunch").disabled = true;
                }else if(serverTime >= dinnerCutOffTime){
                    document.getElementById("dinner").disabled = true;
                }           
            }

I know this cant compare because time are in text format.Some one pleace help me to compleate this.

make your cutofftimes date string instead like var breackfastCutOffTime = new Date(); breackfastCutOffTime.setHours(parseInt('05',10),parseInt('30',10),parseInt('00',10),0); then comparison will work. — Sp0T
– Sp0T, Commented Dec 11, 2015 at 8:09

wwkudu · Accepted Answer · 2015-12-11 11:01:51Z

2

You can write a function which converts Time(hh:mm) in minutes(mm) only. Then you can compare two times and do your operations accordingly.

pseudocode:

function convert(string time) int {
  //split the time by ':'
  //convert the string hh,mm to int hour,mm
  //calculate total minutes 
  //return total  minutes
}

edited Dec 11, 2015 at 11:01

wwkudu

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answered Dec 11, 2015 at 7:35

Kiran007

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Comments

NiRUS · Accepted Answer · 2015-12-11 08:03:18Z

Refer Date Api for more info.

Below is your modified code. I have commented few lines. Modify according to your logic

Fiddler link

//var breackfastCutOffTime    = "5:30";
var breackfastCutOffTime    = new Date();
breackfastCutOffTime.setHours(5);
breackfastCutOffTime.setMinutes(30);

//var lunchCutOffTime         = "10:00";
var lunchCutOffTime = new Date();
lunchCutOffTime.setHours(10);
lunchCutOffTime.setMinutes(00);

//var dinnerCutOffTime = "17:00";
var dinnerCutOffTime = new Date();
dinnerCutOffTime.setHours(17);
dinnerCutOffTime.setMinutes(00)

var serverTime = new Date();

//var serverTime = currentDate.getHours()+ ":" + currentDate.getMinutes();              

//if(Date.parse(toDay) ==  Date.parse(selectedDate)){
  if(serverTime >= breackfastCutOffTime ){
    console.log("breackfastCutOffTime");
    //document.getElementById("breakfast").disabled = true;
  }else if(serverTime >= lunchCutOffTime){
    //document.getElementById("lunch").disabled = true;
    console.log("lunchCutOffTime");
  }else if(serverTime >= dinnerCutOffTime){
    //document.getElementById("dinner").disabled = true;
    console.log("dinnerCutOffTime");
  }           
//}

Explanation:

Instead of converting the Date format to string i am creating new instance of the date for each cutoff time and setting desired time to that object.

Finally compare the date objects directly.

Note: The Date objects are set according to your timezone.

robin · Accepted Answer · 2015-12-11 08:22:24Z

0

You can pass the breackfastCutOffTime,lunchCutOffTime and dinnerCutOffTime to the below function and it will return true if they are equal to or greater than current time.

function compareTime(timeToCompare) {
            var currentDate = new Date();
            var tempDate = new Date();
            var timeToCompareArray = timeToCompare.split(":");
            tempDate.setHours(timeToCompareArray[0]);
            tempDate.setMinutes(timeToCompareArray[1]);
            if (tempDate >= currentDate) {
                return true;
            } else {
                return false;
            }
        }

answered Dec 11, 2015 at 8:22

robin

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