diff --git a/src/AbsoluteDate.php b/src/AbsoluteDate.php
index 3ef6e1e..8aa6ed5 100644
--- a/src/AbsoluteDate.php
+++ b/src/AbsoluteDate.php
@@ -153,6 +153,16 @@ public function isAfterOrEqualTo(self $other): bool
         return $this->__toString() >= $other->__toString();
     }
 
+    public function isBetween(self $other1, self $other2): bool
+    {
+        return $other1->__toString() < $this->__toString() && $this->__toString() < $other2->__toString();
+    }
+
+    public function isBetweenOrEqualTo(self $other1, self $other2): bool
+    {
+        return $other1->__toString() <= $this->__toString() && $this->__toString() <= $other2->__toString();
+    }
+
     /**
      * Returns date formatted according to the default date format (Y-m-d)
      */
diff --git a/tests/AbsoluteDateTest.php b/tests/AbsoluteDateTest.php
index d1e539f..f99e727 100755
--- a/tests/AbsoluteDateTest.php
+++ b/tests/AbsoluteDateTest.php
@@ -201,5 +201,17 @@ public function testComparison(): void
         self::assertTrue($dateAfter->isAfterOrEqualTo($dateBefore));
         self::assertTrue($dateAfter->isAfterOrEqualTo($dateAfter));
         self::assertFalse($dateBefore->isAfterOrEqualTo($dateAfter));
+
+        self::assertTrue((new AbsoluteDate('2023-06-01'))->isBetween($dateBefore, $dateAfter));
+        self::assertFalse((new AbsoluteDate('2020-01-01'))->isBetween($dateBefore, $dateAfter));
+        self::assertFalse((new AbsoluteDate('2025-01-01'))->isBetween($dateBefore, $dateAfter));
+        self::assertFalse($dateBefore->isBetween($dateBefore, $dateAfter));
+        self::assertFalse($dateAfter->isBetween($dateBefore, $dateAfter));
+
+        self::assertTrue((new AbsoluteDate('2023-06-01'))->isBetweenOrEqualTo($dateBefore, $dateAfter));
+        self::assertFalse((new AbsoluteDate('2020-01-01'))->isBetweenOrEqualTo($dateBefore, $dateAfter));
+        self::assertFalse((new AbsoluteDate('2025-01-01'))->isBetweenOrEqualTo($dateBefore, $dateAfter));
+        self::assertTrue($dateBefore->isBetweenOrEqualTo($dateBefore, $dateAfter));
+        self::assertTrue($dateAfter->isBetweenOrEqualTo($dateBefore, $dateAfter));
     }
 }