diff --git a/backend/index.js b/backend/index.js
index 322d9bb..9605007 100644
--- a/backend/index.js
+++ b/backend/index.js
@@ -191,7 +191,7 @@ app.get('/API/day', function (req, res) {
             var dayend = new Date().toMysqlFormat();
             var daybegin = new Date();
             daybegin.setDate(daybegin.getDate() - 1);
-            daybegin = daybegin.toISOString().slice(0, 19).replace('T', ' ');
+            daybegin = daybegin.toMysqlFormat();
             const querystring = `SELECT time, price, quality FROM marketv2 WHERE kind = ${kind} AND time > "${daybegin}" AND time < "${dayend}" ORDER BY time, quality`;
             connection.query(querystring, function (error, results, fields) {
                 if (error) {
@@ -208,6 +208,38 @@ app.get('/API/day', function (req, res) {
         return res.status(status.BAD_REQUEST).send("invalid data provided");
 });
 
+app.get('/API/week', function (req, res) {
+    const kind = parseInt(req.query.kind);
+    if (Number.isInteger(kind)) {
+        //Mock Data:
+        //if (kind === -1 || DEBUG) return res.send(mockDataDay);
+
+        if (kind >= 1 && kind <= 113) {
+            var day = new Date();
+            var querying = "";
+            for (let i = 0; i < 7; i++) {
+                let currentday = day.toMysqlFormat().split(" ")[0];
+                querying += `SELECT "${currentday + " 21:00:00"}" as id,kind,quality,AVG(price) FROM marketv2 WHERE kind = 1 AND TIME > "${currentday} 18:00:00" AND TIME <= "${currentday} 23:59:59" GROUP BY kind,quality UNION `;
+                querying += `SELECT "${currentday + " 15:00:00"}" as id,kind,quality,AVG(price) FROM marketv2 WHERE kind = 1 AND TIME > "${currentday} 12:00:00" AND TIME <= "${currentday} 17:59:59" GROUP BY kind,quality UNION `;
+                querying += `SELECT "${currentday + " 09:00:00"}" as id,kind,quality,AVG(price) FROM marketv2 WHERE kind = 1 AND TIME > "${currentday} 6:00:00" AND TIME <= "${currentday} 11:59:59" GROUP BY kind,quality UNION `;
+                querying += `SELECT "${currentday + " 3:00:00"}" as id,kind,quality,AVG(price) FROM marketv2 WHERE kind = 1 AND TIME > "${currentday} 00:00:00" AND TIME <= "${currentday} 05:59:59" GROUP BY kind,quality ${i === 6 ? "" : "UNION"} `;
+                day.setDate(day.getDate() - 1);
+            }
+            connection.query(querying, function (error, results, fields) {
+                if (error) {
+                    return res.status(status.INTERNAL_SERVER_ERROR).send("database connection failed");
+                }
+                return res.send(results);
+            });
+        }
+        else
+            return res.status(status.BAD_REQUEST).send("invalid data range provided");
+
+    }
+    else
+        return res.status(status.BAD_REQUEST).send("invalid data provided");
+});
+
 app.get('/API/resourcelist', function (req, res) {
     return res.send(resourceList);
 });