diff --git a/src/formatDate.js b/src/formatDate.js
index 769e27661..b0a32371c 100644
--- a/src/formatDate.js
+++ b/src/formatDate.js
@@ -7,8 +7,50 @@
  *
  * @returns {string}
  */
+
 function formatDate(date, fromFormat, toFormat) {
-  // write code here
+  const oldSeparator = fromFormat[3];
+  const newSeparator = toFormat[3];
+
+  const dateParts = date.split(oldSeparator);
+  const fromParts = fromFormat.slice(0, 3);
+  const toParts = toFormat.slice(0, 3);
+
+  const resultParts = [];
+
+  for (const part of toParts) {
+    if (part === 'YY' || part === 'YYYY') {
+      let yearIndex = fromParts.indexOf('YYYY');
+      let yearFormat = 'YYYY';
+
+      if (yearIndex === -1) {
+        yearIndex = fromParts.indexOf('YY');
+        yearFormat = 'YY';
+      }
+
+      let year = dateParts[yearIndex];
+
+      if (yearFormat === 'YYYY' && part === 'YY') {
+        year = year.slice(-2);
+      }
+
+      if (yearFormat === 'YY' && part === 'YYYY') {
+        if (Number(year) < 30) {
+          year = `20${year}`;
+        } else {
+          year = `19${year}`;
+        }
+      }
+
+      resultParts.push(year);
+    } else {
+      const index = fromParts.indexOf(part);
+
+      resultParts.push(dateParts[index]);
+    }
+  }
+
+  return resultParts.join(newSeparator);
 }
 
 module.exports = formatDate;