diff --git a/src/lib/datetime.js b/src/lib/datetime.js
index d37cd847..4560f386 100644
--- a/src/lib/datetime.js
+++ b/src/lib/datetime.js
@@ -258,6 +258,31 @@ export function getShiftedDateRange(minTime, maxTime, scale) {
     };
 }
 
+export function getShiftedDateRangeAndDateType(minTime, maxTime, scale, firstDayOfWeek) {
+    const newDateRange = getShiftedDateRange(minTime, maxTime, scale);
+    let newDateType = dateTimeConstants.allDateRanges.Custom.type;
+
+    for (let dateRangeField in dateTimeConstants.allDateRanges) {
+        if (!Object.prototype.hasOwnProperty.call(dateTimeConstants.allDateRanges, dateRangeField)) {
+            continue;
+        }
+
+        const dateRangeType = dateTimeConstants.allDateRanges[dateRangeField];
+        const dateRange = getDateRangeByDateType(dateRangeType.type, firstDayOfWeek);
+
+        if (dateRange && dateRange.minTime === newDateRange.minTime && dateRange.maxTime === newDateRange.maxTime) {
+            newDateType = dateRangeType.type;
+            break;
+        }
+    }
+
+    return {
+        dateType: newDateType,
+        minTime: newDateRange.minTime,
+        maxTime: newDateRange.maxTime
+    };
+}
+
 export function getDateRangeByDateType(dateType, firstDayOfWeek) {
     let maxTime = 0;
     let minTime = 0;
diff --git a/src/views/desktop/statistics/TransactionPage.vue b/src/views/desktop/statistics/TransactionPage.vue
index 3b2780c8..ec51d8b7 100644
--- a/src/views/desktop/statistics/TransactionPage.vue
+++ b/src/views/desktop/statistics/TransactionPage.vue
@@ -229,7 +229,7 @@ import datetimeConstants from '@/consts/datetime.js';
 import statisticsConstants from '@/consts/statistics.js';
 import { getNameByKeyValue, limitText, formatPercent } from '@/lib/common.js'
 import {
-    getShiftedDateRange,
+    getShiftedDateRangeAndDateType,
     getDateRangeByDateType
 } from '@/lib/datetime.js';
 
@@ -518,25 +518,10 @@ export default {
                 return;
             }
 
-            const newDateRange = getShiftedDateRange(startTime, endTime, scale);
-            let newDateType = this.allDateRanges.Custom.type;
-
-            for (let dateRangeField in this.allDateRanges) {
-                if (!Object.prototype.hasOwnProperty.call(this.allDateRanges, dateRangeField)) {
-                    continue;
-                }
-
-                const dateRangeType = this.allDateRanges[dateRangeField];
-                const dateRange = getDateRangeByDateType(dateRangeType.type, this.firstDayOfWeek);
-
-                if (dateRange && dateRange.minTime === newDateRange.minTime && dateRange.maxTime === newDateRange.maxTime) {
-                    newDateType = dateRangeType.type;
-                    break;
-                }
-            }
+            const newDateRange = getShiftedDateRangeAndDateType(startTime, endTime, scale, this.firstDayOfWeek);
 
             this.statisticsStore.updateTransactionStatisticsFilter({
-                dateType: newDateType,
+                dateType: newDateRange.dateType,
                 startTime: newDateRange.minTime,
                 endTime: newDateRange.maxTime
             });
diff --git a/src/views/mobile/statistics/TransactionPage.vue b/src/views/mobile/statistics/TransactionPage.vue
index 9bc6acdf..681135f3 100644
--- a/src/views/mobile/statistics/TransactionPage.vue
+++ b/src/views/mobile/statistics/TransactionPage.vue
@@ -261,7 +261,7 @@ import datetimeConstants from '@/consts/datetime.js';
 import statisticsConstants from '@/consts/statistics.js';
 import { getNameByKeyValue, limitText, formatPercent } from '@/lib/common.js'
 import {
-    getShiftedDateRange,
+    getShiftedDateRangeAndDateType,
     getDateRangeByDateType
 } from '@/lib/datetime.js';
 
@@ -527,25 +527,10 @@ export default {
                 return;
             }
 
-            const newDateRange = getShiftedDateRange(startTime, endTime, scale);
-            let newDateType = this.allDateRanges.Custom.type;
-
-            for (let dateRangeField in this.allDateRanges) {
-                if (!Object.prototype.hasOwnProperty.call(this.allDateRanges, dateRangeField)) {
-                    continue;
-                }
-
-                const dateRangeType = this.allDateRanges[dateRangeField];
-                const dateRange = getDateRangeByDateType(dateRangeType.type, this.firstDayOfWeek);
-
-                if (dateRange && dateRange.minTime === newDateRange.minTime && dateRange.maxTime === newDateRange.maxTime) {
-                    newDateType = dateRangeType.type;
-                    break;
-                }
-            }
+            const newDateRange = getShiftedDateRangeAndDateType(startTime, endTime, scale, this.firstDayOfWeek);
 
             this.statisticsStore.updateTransactionStatisticsFilter({
-                dateType: newDateType,
+                dateType: newDateRange.dateType,
                 startTime: newDateRange.minTime,
                 endTime: newDateRange.maxTime
             });