I'm using military time (0930, 1000, etc) for times. I have a start time and end time. I need to find the number of 15 minute increments between them, i.e 0900 to 1115 would be 8 blocks of 15, 1130 to 1430 would be 12 blocks of 15, etc. How can I do this with a for loop?
You can use this method.
I convert the time to a decimal value and subtract.
Then just multiply with 4 since there is four quaters in one hour.
$start = "09:30";
$end = "11:15";
list($hour, $min) = explode(":",$start);
$start = $hour + round($min/60,2);
list($hour, $min) = explode(":",$end);
$end = $hour + round($min/60,2);
echo ($end-$start)*4;
I'd be looking at strtotime.
Is this not a dupe question? I mean really any time diff question probably covers this.
Something simple would be:
<?php
$timeStart = '11:30';
$timeStop = '13:30';
$diff = strtotime($timeStart) - strtotime($timeStop);
echo ABS($diff / 60 / 15); // the total number of minutes between the the two times divided by 15.
Not sure how you might want to round the quotient.
I've made an attempt to implement your answer by using for loop
function militaryTime($startTime,$endTime,$interval=15)
{
$count = 0;
for($i=00;$i<=23;$i++)
{
for($j=00;$j<=59;$j++)
{
if(strtotime($i.":".$j)>strtotime($startTime) && strtotime($i.":".$j)<strtotime($endTime))
{
if($j%$interval==0)
{
//echo $i.":".$j."<br>";
$count++;
}
}
}
}
return $count;
}
$countOfMins = militaryTime("09:00","11:15"); //call the above declared function and get Value.