Convert hour to PM and AM with Carbon
Stefan Bogdanescu
Founder & Senior Architect · 2026-06-29
Title: Comprehensive Guide to Converting Hour Format Timestamps to AM/PM Using Carbon in PHP
Abstract: In this blog post, we will explore how to convert hour format timestamps into AM/PM time format using the widely used Carbon extension for PHP. Carbon makes it easy to manage dates and times in your application, including handling complex date operations and time zone conversions. We'll give you a clear understanding of the process while incorporating relevant code examples and best practices.
Introduction: As developers, we often need to manipulate date-time data for our applications. One common task is converting hour timestamps, such as 23:00 or 20:00, into a more readable format with corresponding AM/PM designations. With the help of Carbon, a popular PHP library for managing dates and times, this process can be simplified significantly.
1. Installing Carbon
Firstly, we need to install Carbon in your project. You can find installation instructions on the official Carbon documentation at https://carbon.nesbot.com/docs/#installation.
2. Manipulating Hour Timestamp with Carbon
Once installed and imported into your code, you can initialize a new instance of the Carbon object using the timestamp for the given hour:
```php
// Assume $hourTimestamp is set to 23:00 or 20:00
$carbonInstance = Carbon::createFromTime(0, $hour);
```
Here, we create a new instance of Carbon from the given hour and assume the minute value is always zero. If the input timestamp is already in the desired format (with leading zeros), you can directly use it as follows:
```php
$carbonInstance = Carbon::createFromFormat('H:i', $hourTimestamp, 'Europe/London');
```
3. Converting Hour Timestamp to AM/PM Format
Now that we have our hour timestamp in a Carbon instance, let's convert it into the desired format with Carbon's timezone handling capabilities. We can modify our existing code as follows:
```php
// Use the `format()` method to specify the desired AM/PM formatting
$formattedTimestamp = $carbonInstance->format('g:i A');
echo $formattedTimestamp; // Outputs "11:00 PM" or "19:00" depending on 23:00 or 20:00
```
In this example, the `format()` method is used to set up the desired output according to the given time. The `g` format specifier represents 12-hour notation (01-12), while `A` represents AM/PM designation. To ensure the AM or PM designations are accurate, you can use `h` and `a` in place of `g` and `A`, respectively:
```php
$formattedTimestamp = $carbonInstance->format('h:i a');
echo $formattedTimestamp; // Outputs "23:00 PM" or "20:00"
```
4. Conclusion
In this blog post, we have explored how to convert hour timestamp formats into AM/PM using the Carbon extension for PHP. With a clear understanding of the process and best practices in place, you can easily manipulate timestamps as needed within your applications. By incorporating relevant code examples throughout the article, it is now easier than ever to manage date-time data effectively. Be sure to check out the https://laravelcompany.com/posts for more comprehensive guides on Carbon and PHP development!