diff --git a/.gitignore b/.gitignore
old mode 100644
new mode 100755
index f5e71e2..ca9d427
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 vendor
 composer.lock
 index.php
+.php-cs-fixer.cache
diff --git a/composer.json b/composer.json
old mode 100644
new mode 100755
index e9b69c2..72967c9
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
   },
   "require-dev": {
     "blumilksoftware/codestyle": "^3.1",
-    "phpunit/phpunit": "^11.1.3"
+    "phpunit/phpunit": "^11.2"
   },
   "authors": [
     {
diff --git a/src/HeatmapBuilder.php b/src/HeatmapBuilder.php
old mode 100644
new mode 100755
index 2fea280..958bc9f
--- a/src/HeatmapBuilder.php
+++ b/src/HeatmapBuilder.php
@@ -9,6 +9,7 @@
 use Blumilk\HeatmapBuilder\Contracts\TimeGroupable;
 use Carbon\Carbon;
 use Carbon\CarbonPeriod;
+use Carbon\CarbonTimeZone;
 
 class HeatmapBuilder
 {
@@ -24,7 +25,10 @@ public function __construct(
         protected ?Decorator $decorator = null,
         protected bool $alignedToStartOfPeriod = false,
         protected bool $alignedToEndOfPeriod = false,
-    ) {}
+        protected ?CarbonTimeZone $timezone = null,
+    ) {
+        $this->timezone ??= new CarbonTimeZone("UTC");
+    }
 
     /**
      * @param iterable<array|ArrayAccess|TimeGroupable> $data
@@ -42,18 +46,21 @@ public function build(iterable $data): array
                     PeriodInterval::Monthly => $date->format("Y-m"),
                     PeriodInterval::Weekly => $date->format("Y:W"),
                     PeriodInterval::Daily => $date->format("Y-m-d"),
+                    PeriodInterval::Hourly => $date->format("H:i"),
                 },
                 count: count(
                     array_filter($data, fn(Carbon $item): bool => match ($this->periodInterval) {
                         PeriodInterval::Monthly => $item->isSameMonth($date),
                         PeriodInterval::Weekly => $item->isSameWeek($date),
                         PeriodInterval::Daily => $item->isSameDay($date),
+                        PeriodInterval::Hourly => $item->isSameHour($date),
                     }),
                 ),
                 isToday: match ($this->periodInterval) {
                     PeriodInterval::Monthly => $date->isCurrentMonth(),
                     PeriodInterval::Weekly => $date->isCurrentWeek(),
                     PeriodInterval::Daily => $date->isCurrentDay(),
+                    PeriodInterval::Hourly => $date->isCurrentHour(),
                 },
                 inFuture: $date->isFuture(),
             );
@@ -125,10 +132,13 @@ protected function mapToCarbon(array|ArrayAccess|TimeGroupable $item): Carbon
             ? Carbon::parse($item->getTimeGroupableIndicator())
             : Carbon::parse($item[$this->arrayAccessIndex]);
 
+        $date->setTimezone($this->timezone);
+
         return match ($this->periodInterval) {
             PeriodInterval::Monthly => $date->startOfMonth(),
             PeriodInterval::Weekly => $date->startOfWeek(),
             PeriodInterval::Daily => $date->startOfDay(),
+            PeriodInterval::Hourly => $date->startOfHour(),
         };
     }
 
@@ -140,6 +150,7 @@ protected function getPeriod(): CarbonPeriod
                     PeriodInterval::Monthly => $this->now->copy()->subYear(),
                     PeriodInterval::Weekly => $this->now->copy()->subMonth(),
                     PeriodInterval::Daily => $this->now->copy()->subWeek(),
+                    PeriodInterval::Hourly => $this->now->copy()->subDay(),
                 },
                 $this->periodInterval->value,
                 $this->now->copy(),
@@ -152,6 +163,7 @@ protected function getPeriod(): CarbonPeriod
                 PeriodInterval::Monthly => $from->startOfYear(),
                 PeriodInterval::Weekly => $from->startOfMonth(),
                 PeriodInterval::Daily => $from->startOfWeek(),
+                PeriodInterval::Hourly => $from->startOfDay(),
             };
 
             $period->setStartDate($from);
@@ -163,6 +175,7 @@ protected function getPeriod(): CarbonPeriod
                 PeriodInterval::Monthly => $to->endOfYear(),
                 PeriodInterval::Weekly => $to->endOfMonth(),
                 PeriodInterval::Daily => $to->endOfWeek(),
+                PeriodInterval::Hourly => $to->endOfDay(),
             };
 
             $period->setEndDate($to);
diff --git a/src/PeriodActions.php b/src/PeriodActions.php
index 7617917..c3c7f4d 100644
--- a/src/PeriodActions.php
+++ b/src/PeriodActions.php
@@ -43,6 +43,7 @@ public function forNumberOfTiles(int $number): static
         $start = $this->now->copy()->sub(
             $number,
             match ($this->periodInterval) {
+                PeriodInterval::Hourly => "hours",
                 PeriodInterval::Daily => "days",
                 PeriodInterval::Weekly => "weeks",
                 PeriodInterval::Monthly => "months",
diff --git a/src/PeriodInterval.php b/src/PeriodInterval.php
index 4143685..e588bd1 100644
--- a/src/PeriodInterval.php
+++ b/src/PeriodInterval.php
@@ -6,6 +6,7 @@
 
 enum PeriodInterval: string
 {
+    case Hourly = "1 hour";
     case Daily = "1 day";
     case Weekly = "1 week";
     case Monthly = "1 month";