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Amit Merchant

Amit Merchant

A blog on PHP, JavaScript, and more

Validating specific timezones in Laravel

Laravel provides a timezone validation rule out of the box which you can use to validate if a given value is a valid timezone or not.

$request->validate([
    'timezone' => 'timezone',
]);

But what if you want to validate if a given value is a valid timezone but only from a specific set of timezones? For instance, you want to validate if a given value is a valid timezone but only from the set of timezones that are available in the US.

This PR for Laravel 10.x just addressed this issue. Now, you can pass a region parameter to the timezone validation rule to validate if a given value is a valid timezone but only from a specific region.

So, for instance, if you want to validate if a given value is a valid timezone but only from the set of timezones that are available in the US, you can do it like so.

$request->validate([
    'timezone' => 'timezone:Per_country,US',
]);

Or if you want the timezones from the Africa region, you can do it like so.

$request->validate([
    'timezone' => 'timezone:Africa',
]);

The feature utilizes PHP’s DateTimeZone::listIdentifiers() method under the hood to fetch the list of timezones from a given region.

You can read about it to learn which timezone regions are available for validation.

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