find the closest next hour - php

Question

how can I find the next closest hour in php
so for example if current time is 4:15 the next hour will be 5, etc
$dateString = 'Tue, 13 Mar 2012 04:48:34 -0400';
$date = new DateTime( $dateString );
echo $date->format( 'H:i:s' );
gives me the time from the string and I want to expand on that and get the next closest hour

Answer 1

$nextHour = (intval($date->format('H'))+1) % 24;
echo $nextHour; // 5

Answer 2

Here we go:
<?php
echo date("H:00",strtotime($date. " + 1hour "));
?>

Answer 3

Can you just take pieces (hours, minutes, seconds) and get the next hour?
$dateString = 'Tue, 13 Mar 2012 04:48:34 -0400';
$date = new DateTime( $dateString );
echo $date->format( 'H:i:s' );
echo "\n";
$nexthour = ($date->format('H') + ($date->format('i') > 0 || $date->format('s') > 0 ? 1 : 0)) % 24;
echo "$nexthour:00:00";

Answer 4

Supply any eligible date() to:
function roundToNextHour($dateString) {
$date = new DateTime($dateString);
$minutes = $date->format('i');
if ($minutes > 0) {
$date->modify("+1 hour");
$date->modify('-'.$minutes.' minutes');
}
return $date;
}

Answer 5

<?php
$dateString = 'Tue, 13 Mar 2012 04:48:34 -0400';
$date = new DateTime( $dateString );
$date->modify('+1 hour');
echo $date->format('H:i:s').PHP_EOL;
// OR
echo date('H:i:s', strtotime($dateString) + 60 * 60).PHP_EOL;

Answer 6

As I just needed something similar (next full hour) here my solution:
$now = time();
$nextFullHour = date(DATE_ATOM, $now + (3600 - $now % 3600));
By replacing the 3600 e.g. with 60 you get the next full minute...
You can also replace the $now with any other timestamp if you do not need it relative to the current time.

Answer 7

That is my solution:
$dateTime = new \DateTime();
$dateTime->add(new \DateInterval('PT1H'))
->setTime($dateTime->format('H'), '00');

Answer 8

Nobody else used this one so I figured I'd drop it here, simplest one I saw above for an actual timestamp, not just the hour itself.
$now = ''; // empty uses current time, or you can insert a datetime string
$next_hour = date( 'Y-m-d H:00:00', strtotime( $now . ' +1 hour' ) );

Answer 9

try it for current time, if you need put second argument to date function
<?php echo date('H')+1; ?>
very nice stuff

Answer 10

One more:
$current_datetime = new DateTimeImmutable();
$next_full_hour_datetime = $current_datetime
->modify(
sprintf(
'+%d seconds',
3600 - ($current_datetime->getTimestamp() % 3600)
)
);

Answer 11

A little late to this party, but here's a more flexible function to round up a dateTime object by any interval in minutes. You pass in your dateTime object and a rounding interval in minutes, so for an hour you'd just pass in 60, etc.
public function round_up_time( $datetime, $rounding_interval ) {
// get total minutes from the start of the day
$minutes = ( intval( $datetime->format( 'H' ) ) * 60 ) + ( intval( $datetime->format( 'i' ) ) );
// round up the minutes based on the interval we are rounding to
$rounded_minutes = ( intval( $minutes / $rounding_interval ) + 1 ) * $rounding_interval;
// reset our dateTime to the very start of the day
$datetime->setTime( 0, 0 );
// then increase the dateTime by the rounded minutes value
$datetime->modify( '+ ' . $rounded_minutes . ' minutes' );
}

Answer 12

To get the next closest full hour in DateTime:
$date = new DateTime('+1 hour'); //set the next hour
$date->setTime($date->format('H'), '00', '00'); //keep the next hour, set minutes to 00 and seconds to 00