# Carbon
[](https://packagist.org/packages/nesbot/carbon)
[](https://packagist.org/packages/nesbot/carbon)
[](https://github.com/CarbonPHP/carbon/actions)
[](https://codecov.io/github/CarbonPHP/carbon/actions?branch=master)
An international PHP extension for DateTime. [Documentation](https://carbonphp.github.io/carbon/)
> [!NOTE]
> We're migrating the repository from [briannesbitt/Carbon](https://github.com/briannesbitt/Carbon) to [CarbonPHP/carbon](https://github.com/CarbonPHP/carbon),
> which means if you're looking specific issues/pull-requests, you may have to search both. No other impact as code on both will be kept up to date.
```php
toDateTimeString());
printf("Right now in Vancouver is %s", Carbon::now('America/Vancouver')); //implicit __toString()
$tomorrow = Carbon::now()->addDay();
$lastWeek = Carbon::now()->subWeek();
$officialDate = Carbon::now()->toRfc2822String();
$howOldAmI = Carbon::createFromDate(1975, 5, 21)->age;
$noonTodayLondonTime = Carbon::createFromTime(12, 0, 0, 'Europe/London');
$internetWillBlowUpOn = Carbon::create(2038, 01, 19, 3, 14, 7, 'GMT');
// Don't really want this to happen so mock now
Carbon::setTestNow(Carbon::createFromDate(2000, 1, 1));
// comparisons are always done in UTC
if (Carbon::now()->gte($internetWillBlowUpOn)) {
die();
}
// Phew! Return to normal behaviour
Carbon::setTestNow();
if (Carbon::now()->isWeekend()) {
echo 'Party!';
}
// Over 200 languages (and over 500 regional variants) supported:
echo Carbon::now()->subMinutes(2)->diffForHumans(); // '2 minutes ago'
echo Carbon::now()->subMinutes(2)->locale('zh_CN')->diffForHumans(); // '2分钟å‰'
echo Carbon::parse('2019-07-23 14:51')->isoFormat('LLLL'); // 'Tuesday, July 23, 2019 2:51 PM'
echo Carbon::parse('2019-07-23 14:51')->locale('fr_FR')->isoFormat('LLLL'); // 'mardi 23 juillet 2019 14:51'
// ... but also does 'from now', 'after' and 'before'
// rolling up to seconds, minutes, hours, days, months, years
$daysSinceEpoch = Carbon::createFromTimestamp(0)->diffInDays(); // something such as:
// 19817.6771
$daysUntilInternetBlowUp = $internetWillBlowUpOn->diffInDays(); // Negative value since it's in the future:
// -5037.4560
// Without parameter, difference is calculated from now, but doing $a->diff($b)
// it will count time from $a to $b.
Carbon::createFromTimestamp(0)->diffInDays($internetWillBlowUpOn); // 24855.1348
```
## Installation
### With Composer
```
$ composer require nesbot/carbon
```
```json
{
"require": {
"nesbot/carbon": "^3"
}
}
```
```php
### Translators
[Thanks to people helping us to translate Carbon in so many languages](https://carbonphp.github.io/carbon/develop/translations/translators.html)
### Sponsors
Support this project by becoming a sponsor. Your logo will show up here with a link to your website.
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[[Become a backer](https://opencollective.com/Carbon#backer)]
## Carbon for enterprise
Available as part of the Tidelift Subscription.
The maintainers of ``Carbon`` and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/packagist-nesbot-carbon?utm_source=packagist-nesbot-carbon&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)