diff --git a/src/lib/datetime.ts b/src/lib/datetime.ts
index 82a9ef42..aed3aa4c 100644
--- a/src/lib/datetime.ts
+++ b/src/lib/datetime.ts
@@ -104,6 +104,20 @@ export function isPM(hour: number): boolean {
     }
 }
 
+export function isUnixTimeYearMonthDayEquals(unixTime1: number, unixTime2: number): boolean {
+    const date1 = moment.unix(unixTime1);
+    const date2 = moment.unix(unixTime2);
+
+    return date1.year() === date2.year() && date1.month() === date2.month() && date1.date() === date2.date();
+}
+
+export function isUnixTimeYearMonthDayHourEquals(unixTime1: number, unixTime2: number): boolean {
+    const date1 = moment.unix(unixTime1);
+    const date2 = moment.unix(unixTime2);
+
+    return date1.year() === date2.year() && date1.month() === date2.month() && date1.date() === date2.date() && date1.hour() === date2.hour();
+}
+
 export function getUtcOffsetByUtcOffsetMinutes(utcOffsetMinutes: number): string {
     const offsetHours = Math.trunc(Math.abs(utcOffsetMinutes) / 60);
     const offsetMinutes = Math.abs(utcOffsetMinutes) - offsetHours * 60;
diff --git a/src/stores/exchangeRates.ts b/src/stores/exchangeRates.ts
index e91ef88e..c474edbe 100644
--- a/src/stores/exchangeRates.ts
+++ b/src/stores/exchangeRates.ts
@@ -10,7 +10,11 @@ import type {
 } from '@/models/exchange_rate.ts';
 
 import { isEquals } from '@/lib/common.ts';
-import { getCurrentUnixTime, formatUnixTime } from '@/lib/datetime.ts';
+import {
+    isUnixTimeYearMonthDayEquals,
+    isUnixTimeYearMonthDayHourEquals,
+    getCurrentUnixTime
+} from '@/lib/datetime.ts';
 import { getExchangedAmountByRate } from '@/lib/numeral.ts';
 
 import logger from '@/lib/logger.ts';
@@ -128,13 +132,11 @@ export const useExchangeRatesStore = defineStore('exchangeRates', () => {
         const now = getCurrentUnixTime();
 
         if (!force) {
-            if (currentExchangeRateData && currentExchangeRateData.time && currentExchangeRateData.data &&
-                formatUnixTime(currentExchangeRateData.data.updateTime, 'YYYY-MM-DD') === formatUnixTime(now, 'YYYY-MM-DD')) {
+            if (currentExchangeRateData && currentExchangeRateData.time && currentExchangeRateData.data && isUnixTimeYearMonthDayEquals(currentExchangeRateData.data.updateTime, now)) {
                 return Promise.resolve(currentExchangeRateData.data);
             }
 
-            if (currentExchangeRateData && currentExchangeRateData.time && currentExchangeRateData.data &&
-                formatUnixTime(currentExchangeRateData.time, 'YYYY-MM-DD HH') === formatUnixTime(now, 'YYYY-MM-DD HH')) {
+            if (currentExchangeRateData && currentExchangeRateData.time && currentExchangeRateData.data && isUnixTimeYearMonthDayHourEquals(currentExchangeRateData.time, now)) {
                 return Promise.resolve(currentExchangeRateData.data);
             }
         }