# Javascript Solution

• ``````/**
* @param {string} time
* @return {string}
*/
var nextClosestTime = function(time) {
var arr = time.split("");
var done = 0;
var limits = [2,3,0,5,9]; //limits to numbers in each respective position
var i;
if(parseInt(arr[0]) < 2){ // if the hour is not over 20, we can have a 9 as the second hour digit
limits[1] = 9;
}
min = arr[0];
for(i = arr.length - 1 ; i >= 0 ; i--){
if(arr[i] == ':'){ //I didn't remove the colon from the array to make it easier to translate into a strig with the reduce function
continue;
}
if(arr[i] < min){
min = arr[i];
}
var oVal = arr[i];
for(var j = arr.length - 1 ; j >= 0 ; j--){
if(done != i && done)
break;
if(arr[j] == ':'){
continue;
}
if(
parseInt(arr[j]) > parseInt(oVal) && parseInt(arr[j]) <= limits[i] //if the value of the array we're looking through is greater than the original value in the array and the value is under the max allowed digit in that position
&& (arr[i] == oVal || parseInt(arr[j]) < parseInt(arr[i]) )  //and either we didn't change the value from the original value or the current value of the array we're looking through is less that a previously substituted value
){
arr[i] = arr[j];
done = i; //so I can keep track of where the digit that was changed was
}
}

}

for(var l = done + 1 ; l < arr.length ; l++){
if(arr[l] == ':'){
continue;
}
arr[l] = min;
}

if(done){
var sum = arr.reduce(function (a, b) {
return a + b;
}, "");
return sum;
}
return `\${min}\${min}:\${min}\${min}`;

};
``````

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