CODEWITHSUNDEEP
phpdatetimetime
user849137
user849137

Reputation:

Adding 1 hour to time variable

I have a time to which I want to add an hour:

$time = '10:09';

I've tried:

$time = strtotime('+1 hour');

strtotime('+1 hour', $time);

$time = date('H:i', strtotime('+1 hour'));

But none of the above work.

Upvotes: 65

Views: 294099

Answers (12)

Lục Thần Ca
Lục Thần Ca

Reputation: 11

Worked for me use DateTime::modify or date_modify: https://www.php.net/manual/en/datetime.modify.php

// Example:

$timestamp = 1680947903;
// Timestamp to datetime
$date = new \DateTime('@'. $timestamp );
$date->modify('+1 hour');

result

Upvotes: 1

user19208279
user19208279

Reputation: 1

I had a similar problem and the fix was to say “hours” instead of “hour”.

Upvotes: -2

Abhay Maurya
Abhay Maurya

Reputation: 12277

2020 Update

It is weird that no one has suggested the OOP way:

$date = new \DateTime(); //now
$date->add(new \DateInterval('PT3600S'));//add 3600s / 1 hour

OR

$date = new \DateTime(); //now
$date->add(new \DateInterval('PT60M'));//add 60 min / 1 hour

OR

$date = new \DateTime(); //now
$date->add(new \DateInterval('PT1H'));//add 1 hour

Extract it in string with format:

var_dump($date->format('Y-m-d H:i:s'));

Upvotes: 15

jai
jai

Reputation: 85

2021 Update

Worked for me..

$text = str_replace(':PM', '', '19:00:PM');   //19:00:PM  //Removes :PM
$text = str_replace(':AM', '', $text);   //Removes :AM
$time = strtotime($text);   //19:00
$startTime = date("H:i:A", strtotime('- 1 hours', $time));
$endTime = date("H:i:A", strtotime('+ 1 hours', $time));

Output:

echo $startTime; //18:00:PM
echo $endTime;  //20:00:PM

Upvotes: -4

baladeva juganas
baladeva juganas

Reputation: 41

You can try this code:

$time = '10:09';

echo date( 'H:i', strtotime( '+1 hour' , strtotime($time) ) );

Upvotes: 4

paulcol.
paulcol.

Reputation: 3000

Worked for me..

$timestamp = strtotime('10:09') + 60*60;

$time = date('H:i', $timestamp);

echo $time;//11:09

Explanation:

strtotime('10:09') creates a numerical timestamp in seconds, something like 1510450372. Simply add or remove the amount of seconds you need and use date() to convert it back into a human readable format.

$timestamp = strtotime('10:09') + 60*60; // 10:09 + 1 hour
$timestamp = strtotime('10:09') + 60*60*2; // 10:09 + 2 hours
$timestamp = strtotime('10:09') - 60*60; // 10:09 - 1 hour

time() also creates a numerical timestamp but for right now. You can use it in the same way.

$timestamp = time() + 60*60; // now + 1 hour

Upvotes: 122

Mayank Vadiya
Mayank Vadiya

Reputation: 1451

try this it is worked for me.

$time="10:09";
$time = date('H:i', strtotime($time.'+1 hour'));
echo $time;

Upvotes: 18

Ladislav Němeček
Ladislav Němeček

Reputation: 41

Simple and smart solution: 

date("H:i:s", time()+3600);

Upvotes: 3

Azam Alvi
Azam Alvi

Reputation: 7055

You can do like this

    echo date('Y-m-d H:i:s', strtotime('4 minute'));
    echo date('Y-m-d H:i:s', strtotime('6 hour'));
    echo date('Y-m-d H:i:s', strtotime('2 day'));

Upvotes: 31

user3298040
user3298040

Reputation: 3

Beware of adding 3600!! may be a problem on day change because of unix timestamp format uses moth before day.

e.g. 2012-03-02 23:33:33 would become 2014-01-13 13:00:00 by adding 3600 better use mktime and date functions they can handle this and things like adding 25 hours etc.

Upvotes: -3

Maxime Pacary
Maxime Pacary

Reputation: 23011

$time = '10:09';
$timestamp = strtotime($time);
$timestamp_one_hour_later = $timestamp + 3600; // 3600 sec. = 1 hour

// Formats the timestamp to HH:MM => outputs 11:09.
echo strftime('%H:%M', $timestamp_one_hour_later);
// As crolpa suggested, you can also do
// echo date('H:i', $timestamp_one_hour_later);

Check PHP manual for strtotime(), strftime() and date() for details.

BTW, in your initial code, you need to add some quotes otherwise you will get PHP syntax errors:

$time = 10:09; // wrong syntax
$time = '10:09'; // syntax OK

$time = date(H:i, strtotime('+1 hour')); // wrong syntax
$time = date('H:i', strtotime('+1 hour')); // syntax OK

Upvotes: 16

Ricardo Souza
Ricardo Souza

Reputation: 16446

You can use:

$time = strtotime("10:09") + 3600;
echo date('H:i', $time);

Or date_add: http://www.php.net/manual/en/datetime.add.php

Upvotes: 1

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