diff --git a/backend/src/api/statistics.ts b/backend/src/api/statistics.ts
index ee6052cdf..b6738b296 100644
--- a/backend/src/api/statistics.ts
+++ b/backend/src/api/statistics.ts
@@ -267,7 +267,7 @@ class Statistics {
     }
   }
 
-  private getQueryForDays(div: number, limit: number) {
+  private getQueryForDays(div: number, interval: string) {
     return `SELECT id, UNIX_TIMESTAMP(added) as added, unconfirmed_transactions,
       tx_per_second,
       vbytes_per_second,
@@ -308,7 +308,11 @@ class Statistics {
       vsize_1400,
       vsize_1600,
       vsize_1800,
-      vsize_2000 FROM statistics GROUP BY UNIX_TIMESTAMP(added) DIV ${div} ORDER BY id DESC LIMIT ${limit}`;
+      vsize_2000 \
+      FROM statistics \
+      WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW() \
+      GROUP BY UNIX_TIMESTAMP(added) DIV ${div} \
+      ORDER BY id DESC;`;
   }
 
   public async $get(id: number): Promise<OptimizedStatistic | undefined> {
@@ -341,7 +345,7 @@ class Statistics {
   public async $list24H(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(300, 288); // 5m interval
+      const query = this.getQueryForDays(300, '1 DAY'); // 5m interval
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
@@ -354,7 +358,8 @@ class Statistics {
   public async $list1W(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(1800, 336); // 30m interval
+      const query = this.getQueryForDays(1800, '1 WEEK'); // 30m interval
+      await connection.query<any>({ sql: "SET time_zone = '+9:00';", timeout: this.queryTimeout });
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
@@ -367,7 +372,7 @@ class Statistics {
   public async $list1M(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(7200, 372); // 4h interval
+      const query = this.getQueryForDays(7200, '1 MONTH'); // 2h interval
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
@@ -380,7 +385,7 @@ class Statistics {
   public async $list3M(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(21600, 372); // 6h interval
+      const query = this.getQueryForDays(21600, '3 MONTH'); // 6h interval
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
@@ -393,7 +398,7 @@ class Statistics {
   public async $list6M(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(43200, 372); // 12h interval 
+      const query = this.getQueryForDays(43200, '6 MONTH'); // 12h interval 
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
@@ -406,7 +411,7 @@ class Statistics {
   public async $list1Y(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(86400, 365); // 1d interval
+      const query = this.getQueryForDays(86400, '1 YEAR'); // 1d interval
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
@@ -419,7 +424,7 @@ class Statistics {
   public async $list2Y(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(172800, 365); // 2d interval
+      const query = this.getQueryForDays(172800, "2 YEAR"); // 2d interval
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);
@@ -432,7 +437,7 @@ class Statistics {
   public async $list3Y(): Promise<OptimizedStatistic[]> {
     try {
       const connection = await DB.pool.getConnection();
-      const query = this.getQueryForDays(259200, 365); // 3d interval
+      const query = this.getQueryForDays(259200, "3 YEAR"); // 3d interval
       const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
       connection.release();
       return this.mapStatisticToOptimizedStatistic(rows);