fix the dates in Statistics & Analysis page does not be processed for daylight saving time

src/lib/datetime.ts

@@ -521,6 +521,10 @@ export function getBrowserTimezoneOffsetMinutes(): number {
     return -new Date().getTimezoneOffset();
 }
 
+export function guessTimezoneName(): string {
+    return moment.tz.guess(true);
+}
+
 export function getLocalDatetimeFromUnixTime(unixTime: number): Date {
     return new Date(unixTime * 1000);
 }

src/lib/services.ts

@@ -167,13 +167,19 @@ import {
     isBoolean,
     objectFieldWithValueToArrayItem
 } from './common.ts';
+import {
+    getTimeZone
+} from './settings.ts';
 import {
     getGoogleMapAPIKey,
     getBaiduMapAK,
     getAmapApplicationKey,
     getExchangeRatesRequestTimeout
 } from './server_settings.ts';
-import { getTimezoneOffsetMinutes } from './datetime.ts';
+import {
+    getTimezoneOffsetMinutes,
+    guessTimezoneName
+} from './datetime.ts';
 import { generateRandomUUID } from './misc.ts';
 import { getBasePath } from './web.ts';
 import logger from './logger.ts';
@@ -204,6 +210,14 @@ axios.interceptors.request.use((config: ApiRequestConfig) => {
 
     config.headers['X-Timezone-Offset'] = getTimezoneOffsetMinutes();
 
+    let timezoneName = getTimeZone();
+
+    if (!timezoneName || timezoneName.trim().length < 1) {
+        timezoneName = guessTimezoneName();
+    }
+
+    config.headers['X-Timezone-Name'] = timezoneName;
+
     if (needBlockRequest && !config.ignoreBlocked) {
         return new Promise(resolve => {
             blockedRequests.push(newToken => {

src/lib/settings.ts

@@ -89,6 +89,10 @@ export function getTheme(): string {
     return getApplicationSettings().theme;
 }
 
+export function getTimeZone(): string {
+    return getApplicationSettings().timeZone;
+}
+
 export function isEnableApplicationLock(): boolean {
     return getApplicationSettings().applicationLock;
 }

src/locales/helpers.ts

@@ -202,6 +202,7 @@ import {
     getTimeDifferenceHoursAndMinutes,
     getTimezoneOffset,
     getTimezoneOffsetMinutes,
+    guessTimezoneName,
     isDateRangeMatchFullMonths,
     isDateRangeMatchFullYears,
     isPM
@@ -2316,7 +2317,7 @@ export function useI18n() {
             logger.info(`Current timezone is ${timezone}`);
             setTimeZone(timezone);
         } else {
-            logger.info(`No timezone is set, use browser default ${getTimezoneOffset()} (maybe ${moment.tz.guess(true)})`);
+            logger.info(`No timezone is set, use browser default ${getTimezoneOffset()} (maybe ${guessTimezoneName()})`);
             setTimeZone('');
         }