Fix date handling in time zone other than UTC

apps/api/src/app/endpoints/sitemap/sitemap.controller.ts

@@ -1,10 +1,11 @@
 import { ConfigurationService } from '@ghostfolio/api/services/configuration/configuration.service';
 import {
   DATE_FORMAT,
-  getYesterday,
+  getStartOfUtcDateOfYesterday,
   interpolate
 } from '@ghostfolio/common/helper';
 
+import { utc } from '@date-fns/utc';
 import { Controller, Get, Res, VERSION_NEUTRAL, Version } from '@nestjs/common';
 import { format } from 'date-fns';
 import { Response } from 'express';
@@ -32,7 +33,9 @@ export class SitemapController {
   @Get()
   @Version(VERSION_NEUTRAL)
   public getSitemapXml(@Res() response: Response) {
-    const currentDate = format(getYesterday(), DATE_FORMAT);
+    const currentDate = format(getStartOfUtcDateOfYesterday(), DATE_FORMAT, {
+      in: utc
+    });
 
     response.setHeader('content-type', 'application/xml');
     response.send(

apps/api/src/app/symbol/symbol.controller.ts

@@ -8,6 +8,7 @@ import {
 } from '@ghostfolio/common/interfaces';
 import type { RequestWithUser } from '@ghostfolio/common/types';
 
+import { utc } from '@date-fns/utc';
 import {
   Controller,
   Get,
@@ -103,7 +104,7 @@ export class SymbolController {
     @Param('dateString') dateString: string,
     @Param('symbol') symbol: string
   ): Promise<DataProviderHistoricalResponse> {
-    const date = parseISO(dateString);
+    const date = parseISO(dateString, { in: utc });
 
     if (!isDate(date)) {
       throw new HttpException(

apps/api/src/app/symbol/symbol.service.ts

@@ -19,6 +19,7 @@ import {
 } from '@ghostfolio/common/interfaces';
 import { UserWithSettings } from '@ghostfolio/common/types';
 
+import { utc } from '@date-fns/utc';
 import { Injectable, Logger } from '@nestjs/common';
 import { format, subDays } from 'date-fns';
 
@@ -123,8 +124,9 @@ export class SymbolService {
 
     return {
       marketPrice:
-        historicalData?.[assetProfileIdentifier]?.[format(date, DATE_FORMAT)]
+        historicalData?.[assetProfileIdentifier]?.[
-          ?.marketPrice
+          format(date, DATE_FORMAT, { in: utc })
+        ]?.marketPrice
     };
   }
 

apps/api/src/services/data-provider/data-provider.service.ts

@@ -393,10 +393,11 @@ export class DataProviderService implements OnModuleInit {
 
     const rangeQuery =
       from && to
-        ? Prisma.sql`AND date >= ${format(from, DATE_FORMAT)}::timestamp AND date <= ${format(
+        ? Prisma.sql`AND date >= ${format(from, DATE_FORMAT, {
-            to,
+            in: utc
-            DATE_FORMAT
+          })}::timestamp AND date <= ${format(to, DATE_FORMAT, {
-          )}::timestamp`
+            in: utc
+          })}::timestamp`
         : Prisma.empty;
 
     const dataSources = aItems.map(({ dataSource }) => {
@@ -430,7 +431,9 @@ export class DataProviderService implements OnModuleInit {
           r[assetProfileIdentifier] = {};
         }
 
-        r[assetProfileIdentifier][format(new Date(date), DATE_FORMAT)] = {
+        r[assetProfileIdentifier][
+          format(new Date(date), DATE_FORMAT, { in: utc })
+        ] = {
           marketPrice
         };
 

apps/api/src/services/exchange-rate-data/exchange-rate-data.service.ts

@@ -12,11 +12,12 @@ import {
 import {
   DATE_FORMAT,
   getAssetProfileIdentifier,
-  getYesterday,
+  getStartOfUtcDateOfYesterday,
   resetHours
 } from '@ghostfolio/common/helper';
 import { DataProviderHistoricalResponse } from '@ghostfolio/common/interfaces';
 
+import { utc } from '@date-fns/utc';
 import { Injectable, Logger } from '@nestjs/common';
 import {
   eachDayOfInterval,
@@ -164,11 +165,19 @@ export class ExchangeRateDataService {
   }
 
   public async loadCurrencies() {
+    const startOfUtcDateOfYesterday = getStartOfUtcDateOfYesterday();
+
+    const dateStringOfYesterday = format(
+      startOfUtcDateOfYesterday,
+      DATE_FORMAT,
+      { in: utc }
+    );
+
     const historicalData = await this.dataProviderService.getHistorical(
       this.currencyPairs,
       'day',
-      getYesterday(),
+      startOfUtcDateOfYesterday,
-      getYesterday()
+      startOfUtcDateOfYesterday
     );
 
     const quotes = await this.dataProviderService.getQuotes({
@@ -196,7 +205,7 @@ export class ExchangeRateDataService {
 
       if (isNumber(quote?.marketPrice)) {
         result[symbol] = {
-          [format(getYesterday(), DATE_FORMAT)]: {
+          [dateStringOfYesterday]: {
             marketPrice: quote.marketPrice
           }
         };
@@ -219,17 +228,19 @@ export class ExchangeRateDataService {
 
     for (const symbol of Object.keys(resultExtended)) {
       const [currency1, currency2] = symbol.match(/.{1,3}/g);
-      const date = format(getYesterday(), DATE_FORMAT);
 
-      this.exchangeRates[symbol] = resultExtended[symbol]?.[date]?.marketPrice;
+      this.exchangeRates[symbol] =
+        resultExtended[symbol]?.[dateStringOfYesterday]?.marketPrice;
 
       if (!this.exchangeRates[symbol]) {
         // Not found, calculate indirectly via base currency
         this.exchangeRates[symbol] =
-          resultExtended[`${currency1}${DEFAULT_CURRENCY}`]?.[date]
+          resultExtended[`${currency1}${DEFAULT_CURRENCY}`]?.[
-            ?.marketPrice *
+            dateStringOfYesterday
-          resultExtended[`${DEFAULT_CURRENCY}${currency2}`]?.[date]
+          ]?.marketPrice *
-            ?.marketPrice;
+          resultExtended[`${DEFAULT_CURRENCY}${currency2}`]?.[
+            dateStringOfYesterday
+          ]?.marketPrice;
 
         // Calculate the opposite direction
         this.exchangeRates[`${currency2}${currency1}`] =

libs/common/src/lib/helper.ts

@@ -531,14 +531,6 @@ export function getUtc(aDateString: string) {
   );
 }
 
-export function getYesterday() {
-  const year = getYear(new Date());
-  const month = getMonth(new Date());
-  const day = getDate(new Date());
-
-  return subDays(new Date(Date.UTC(year, month, day)), 1);
-}
-
 export function hasGhostfolioPrefix(aSymbol: string) {
   if (!aSymbol) {
     return false;