CODEWITHSUNDEEP
javascript
ROD BAL
ROD BAL

Reputation: 31

If Condition Comparison of two string format HH:MM:SS

Hi I am new to javascript I wanted to implement a code where I have two var below start time and end time is military format

  var start1= 08:00:00
  var endto=03:00:00

I wanted to create a condition where if my giventime is in between the start1 and end to

Ex:

giventime = 02:00:00 it will pass through because it is in the range of 08:00:00 - 03:00:00

giventime = 05:00:00 it will NOT pass through because it is NOT in the range of 08:00:00 - 03:00:00

I tried to used the code below:

   var start1= 08:00:00
   var endto=03:00:00
   var giventime = 02:00:00 


if giventime>start1 && giventime<=endto {

//but doesnt work it should allow because 02:00:00 is withing the range of 
  start1 and endto
     }

Upvotes: 1

Views: 304

Answers (3)

Cid
Cid

Reputation: 15247

You need a condition to check if the starting time is higher than the ending one.

In that case, you'll want to check if the given date is greater than the starting one or lesser than the ending time.

"02:00:00" > "08:00:00" || "02:00:00" < "03:00:00" // true
"05:00:00" > "08:00:00" || "05:00:00" < "03:00:00" // false

"02:00:00" > "03:00:00" && "02:00:00" < "08:00:00" // false
"05:00:00" > "03:00:00" && "05:00:00" < "08:00:00" // true


function IsInTime(start, end, given)
{
    if (start < end)
    {
        return (given > start && given <= end);
    }
    return (given > start || given <= end);
}

var start1 = "08:00:00"
var endto = "03:00:00"
var giventime = "02:00:00"

if (IsInTime(start1, endto, giventime))
{
    console.log(giventime + " is in the range " + start1 + " - " + endto);
}
else
{
    console.log(giventime + " is NOT in the range " + start1 + " - " + endto);
}

start1 = "08:00:00"
endto = "03:00:00"
giventime = "05:00:00"

if (IsInTime(start1, endto, giventime))
{
    console.log(giventime + " is in the range " + start1 + " - " + endto);
}
else
{
    console.log(giventime + " is NOT in the range " + start1 + " - " + endto);
}

start1 = "03:00:00"
endto = "08:00:00"
giventime = "02:00:00"

if (IsInTime(start1, endto, giventime))
{
    console.log(giventime + " is in the range " + start1 + " - " + endto);
}
else
{
    console.log(giventime + " is NOT in the range " + start1 + " - " + endto);
}

start1 = "03:00:00"
endto = "08:00:00"
giventime = "05:00:00"

if (IsInTime(start1, endto, giventime))
{
    console.log(giventime + " is in the range " + start1 + " - " + endto);
}
else
{
    console.log(giventime + " is NOT in the range " + start1 + " - " + endto);
}

Upvotes: 0

Maheer Ali
Maheer Ali

Reputation: 36574

You can add any date with given time and convert it to Date then use getTime() to get the miliseconds. Now check if start > end then minus 1 day from start

var start1= '08:00:00'
   var endto='03:00:00'
   var givenTime = '02:00:00' 
function isTimeGreater(start,end,given){
   
   start = new Date(`Feb 12 2019 ${start}`).getTime();
   end = new Date(`Feb 12 2019 ${end}`).getTime();
   given = new Date(`Feb 12 2019 ${given}`).getTime();
   
   if(start > end){
   start -= 24*60*60 * 1000;
   
   }
   
   return start < given && given < end;
}
console.log(isTimeGreater(start1,endto,givenTime))
console.log(isTimeGreater(start1,endto,'04:00:00'))

Upvotes: 1

ehutchllew
ehutchllew

Reputation: 958

Because of the format you're going to have issues. Instead you could look at a time including date this can be done using the new Date() method.

For instance if you did new Date("January 19, 2019 08:00:00") for start and similarly did one for end date, you could compare the Date objects with your if statement.

Upvotes: 0

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