diff --git a/tests/unit/Support/NavigationPreferredCarbonFormatByPeriodTest.php b/tests/unit/Support/NavigationPreferredCarbonFormatByPeriodTest.php
new file mode 100644
index 0000000000..62b4c2388d
--- /dev/null
+++ b/tests/unit/Support/NavigationPreferredCarbonFormatByPeriodTest.php
@@ -0,0 +1,65 @@
+<?php
+
+/*
+ * NavigationPreferredCarbonFormatByPeriodTest.php
+ * Copyright (c) 2023 Antonio Spinelli <https://github.com/tonicospinelli>
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+namespace Tests\unit\Support;
+
+use FireflyIII\Support\Navigation;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @group unit-test
+ * @group support
+ * @group navigation
+ */
+class NavigationPreferredCarbonFormatByPeriodTest extends TestCase
+{
+    private Navigation $navigation;
+
+    public function __construct(string $name)
+    {
+        parent::__construct($name);
+        $this->navigation = new Navigation();
+    }
+
+    public static function providePeriods(): array
+    {
+        return [
+            'unknown'     => ['period' => '1day', 'expected' => 'Y-m-d'],
+            'week'        => ['period' => '1W', 'expected' => '\WW,Y'],
+            'month'       => ['period' => '1M', 'expected' => 'Y-m'],
+            'quarterly'   => ['period' => '3M', 'expected' => '\QQ,Y'],
+            'half-yearly' => ['period' => '6M', 'expected' => '\QQ,Y'],
+            'yearly'      => ['period' => '1Y', 'expected' => 'Y'],
+        ];
+    }
+
+    /**
+     * @dataProvider providePeriods
+     */
+    public function testGivenAPeriodWhenCallPreferredCarbonFormatByPeriodThenReturnsExpectedFormat(string $period, string $expected)
+    {
+        $formatPeriod = $this->navigation->preferredCarbonFormatByPeriod($period);
+        $this->assertEquals($expected, $formatPeriod);
+    }
+}
diff --git a/tests/unit/Support/NavigationPreferredCarbonFormatTest.php b/tests/unit/Support/NavigationPreferredCarbonFormatTest.php
new file mode 100644
index 0000000000..ad82ee8548
--- /dev/null
+++ b/tests/unit/Support/NavigationPreferredCarbonFormatTest.php
@@ -0,0 +1,72 @@
+<?php
+
+/*
+ * NavigationPreferredCarbonFormatTest.php
+ * Copyright (c) 2023 Antonio Spinelli <https://github.com/tonicospinelli>
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+namespace Tests\unit\Support;
+
+use Carbon\Carbon;
+use FireflyIII\Support\Navigation;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @group unit-test
+ * @group support
+ * @group navigation
+ */
+class NavigationPreferredCarbonFormatTest extends TestCase
+{
+    private Navigation $navigation;
+
+    public function __construct(string $name)
+    {
+        parent::__construct($name);
+        $this->navigation = new Navigation();
+    }
+
+    public static function providePeriods(): array
+    {
+        return [
+            '1 week'    => ['start' => Carbon::now(), 'end' => Carbon::now()->addWeek(), 'expected' => 'Y-m-d'],
+            '1 month'   => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonth(), 'expected' => 'Y-m-d'],
+            '2 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(2), 'expected' => 'Y-m'],
+            '3 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(3), 'expected' => 'Y-m'],
+            '6 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(6), 'expected' => 'Y-m'],
+            '7 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(7), 'expected' => 'Y-m'],
+            '11 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(11), 'expected' => 'Y-m'],
+            '12 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(12), 'expected' => 'Y-m'],
+            '13 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(13), 'expected' => 'Y'],
+            '16 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(16), 'expected' => 'Y'],
+            '1 year'    => ['start' => Carbon::now(), 'end' => Carbon::now()->addYear(), 'expected' => 'Y-m'],
+            '2 years'   => ['start' => Carbon::now(), 'end' => Carbon::now()->addYears(2), 'expected' => 'Y'],
+        ];
+    }
+
+    /**
+     * @dataProvider providePeriods
+     */
+    public function testGivenStartAndEndDatesWhenCallPreferredCarbonFormatThenReturnsTheExpectedFormatSuccessful(Carbon $start, Carbon $end, string $expected)
+    {
+        $carbonFormat = $this->navigation->preferredCarbonFormat($start, $end);
+        $this->assertEquals($expected, $carbonFormat);
+    }
+}
diff --git a/tests/unit/Support/NavigationPreferredEndOfPeriodTest.php b/tests/unit/Support/NavigationPreferredEndOfPeriodTest.php
new file mode 100644
index 0000000000..f9d74d2aa8
--- /dev/null
+++ b/tests/unit/Support/NavigationPreferredEndOfPeriodTest.php
@@ -0,0 +1,72 @@
+<?php
+
+/*
+ * NavigationPreferredEndOfPeriodTest.php
+ * Copyright (c) 2023 Antonio Spinelli <https://github.com/tonicospinelli>
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+namespace Tests\unit\Support;
+
+use Carbon\Carbon;
+use FireflyIII\Support\Navigation;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @group unit-test
+ * @group support
+ * @group navigation
+ */
+class NavigationPreferredEndOfPeriodTest extends TestCase
+{
+    private Navigation $navigation;
+
+    public function __construct(string $name)
+    {
+        parent::__construct($name);
+        $this->navigation = new Navigation();
+    }
+
+    public static function providePeriods(): array
+    {
+        return [
+            '1 week'    => ['start' => Carbon::now(), 'end' => Carbon::now()->addWeek(), 'expected' => 'endOfDay'],
+            '1 month'   => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonth(), 'expected' => 'endOfDay'],
+            '2 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(2), 'expected' => 'endOfMonth'],
+            '3 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(3), 'expected' => 'endOfMonth'],
+            '6 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(6), 'expected' => 'endOfMonth'],
+            '7 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(7), 'expected' => 'endOfMonth'],
+            '11 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(11), 'expected' => 'endOfMonth'],
+            '12 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(12), 'expected' => 'endOfMonth'],
+            '13 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(13), 'expected' => 'endOfYear'],
+            '16 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(16), 'expected' => 'endOfYear'],
+            '1 year'    => ['start' => Carbon::now(), 'end' => Carbon::now()->addYear(), 'expected' => 'endOfMonth'],
+            '2 years'   => ['start' => Carbon::now(), 'end' => Carbon::now()->addYears(2), 'expected' => 'endOfYear'],
+        ];
+    }
+
+    /**
+     * @dataProvider providePeriods
+     */
+    public function testGivenStartAndEndDatesWhenCallPreferredEndOfPeriodThenReturnsTheExpectedFormatSuccessful(Carbon $start, Carbon $end, string $expected)
+    {
+        $formatPeriod = $this->navigation->preferredEndOfPeriod($start, $end);
+        $this->assertEquals($expected, $formatPeriod);
+    }
+}
diff --git a/tests/unit/Support/NavigationPreferredRangeFormatTest.php b/tests/unit/Support/NavigationPreferredRangeFormatTest.php
new file mode 100644
index 0000000000..10b18c2544
--- /dev/null
+++ b/tests/unit/Support/NavigationPreferredRangeFormatTest.php
@@ -0,0 +1,72 @@
+<?php
+
+/*
+ * NavigationPreferredRangeFormatTest.php
+ * Copyright (c) 2023 Antonio Spinelli <https://github.com/tonicospinelli>
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+namespace Tests\unit\Support;
+
+use Carbon\Carbon;
+use FireflyIII\Support\Navigation;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @group unit-test
+ * @group support
+ * @group navigation
+ */
+class NavigationPreferredRangeFormatTest extends TestCase
+{
+    private Navigation $navigation;
+
+    public function __construct(string $name)
+    {
+        parent::__construct($name);
+        $this->navigation = new Navigation();
+    }
+
+    public static function providePeriods(): array
+    {
+        return [
+            '1 week'    => ['start' => Carbon::now(), 'end' => Carbon::now()->addWeek(), 'expected' => '1D'],
+            '1 month'   => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonth(), 'expected' => '1D'],
+            '2 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(2), 'expected' => '1M'],
+            '3 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(3), 'expected' => '1M'],
+            '6 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(6), 'expected' => '1M'],
+            '7 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(7), 'expected' => '1M'],
+            '11 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(11), 'expected' => '1M'],
+            '12 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(12), 'expected' => '1M'],
+            '13 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(13), 'expected' => '1Y'],
+            '16 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(16), 'expected' => '1Y'],
+            '1 year'    => ['start' => Carbon::now(), 'end' => Carbon::now()->addYear(), 'expected' => '1M'],
+            '2 years'   => ['start' => Carbon::now(), 'end' => Carbon::now()->addYears(2), 'expected' => '1Y'],
+        ];
+    }
+
+    /**
+     * @dataProvider providePeriods
+     */
+    public function testGivenStartAndEndDatesWhenCallPreferredRangeFormatThenReturnsTheExpectedFormatSuccessful(Carbon $start, Carbon $end, string $expected)
+    {
+        $formatPeriod = $this->navigation->preferredRangeFormat($start, $end);
+        $this->assertEquals($expected, $formatPeriod);
+    }
+}
diff --git a/tests/unit/Support/NavigationPreferredSqlFormatTest.php b/tests/unit/Support/NavigationPreferredSqlFormatTest.php
new file mode 100644
index 0000000000..2af197b535
--- /dev/null
+++ b/tests/unit/Support/NavigationPreferredSqlFormatTest.php
@@ -0,0 +1,72 @@
+<?php
+
+/*
+ * NavigationPreferredSqlFormatTest.php
+ * Copyright (c) 2023 Antonio Spinelli <https://github.com/tonicospinelli>
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+namespace Tests\unit\Support;
+
+use Carbon\Carbon;
+use FireflyIII\Support\Navigation;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @group unit-test
+ * @group support
+ * @group navigation
+ */
+class NavigationPreferredSqlFormatTest extends TestCase
+{
+    private Navigation $navigation;
+
+    public function __construct(string $name)
+    {
+        parent::__construct($name);
+        $this->navigation = new Navigation();
+    }
+
+    public static function provideDates(): array
+    {
+        return [
+            '1 week'    => ['start' => Carbon::now(), 'end' => Carbon::now()->addWeek(), 'expected' => '%Y-%m-%d'],
+            '1 month'   => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonth(), 'expected' => '%Y-%m-%d'],
+            '2 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(2), 'expected' => '%Y-%m'],
+            '3 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(3), 'expected' => '%Y-%m'],
+            '6 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(6), 'expected' => '%Y-%m'],
+            '7 months'  => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(7), 'expected' => '%Y-%m'],
+            '11 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(11), 'expected' => '%Y-%m'],
+            '12 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(12), 'expected' => '%Y-%m'],
+            '13 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(13), 'expected' => '%Y'],
+            '16 months' => ['start' => Carbon::now(), 'end' => Carbon::now()->addMonths(16), 'expected' => '%Y'],
+            '1 year'    => ['start' => Carbon::now(), 'end' => Carbon::now()->addYear(), 'expected' => '%Y-%m'],
+            '2 years'   => ['start' => Carbon::now(), 'end' => Carbon::now()->addYears(2), 'expected' => '%Y'],
+        ];
+    }
+
+    /**
+     * @dataProvider provideDates
+     */
+    public function testGivenStartAndEndDatesWhenCallPreferredSqlFormatThenReturnsTheExpectedFormatSuccessful(Carbon $start, Carbon $end, string $expected)
+    {
+        $formatPeriod = $this->navigation->preferredSqlFormat($start, $end);
+        $this->assertEquals($expected, $formatPeriod);
+    }
+}