diff --git a/src/components/hooks/useDateParameters.ts b/src/components/hooks/useDateParameters.ts
index 16e123142..359bbc1fd 100644
--- a/src/components/hooks/useDateParameters.ts
+++ b/src/components/hooks/useDateParameters.ts
@@ -5,7 +5,7 @@ export function useDateParameters() {
   const {
     dateRange: { startDate, endDate, unit },
   } = useDateRange();
-  const { timezone, toUtc, canonicalizeTimezone } = useTimezone();
+  const { timezone, toUtc } = useTimezone();
 
   return {
     startAt: +toUtc(startDate),
@@ -13,6 +13,6 @@ export function useDateParameters() {
     startDate: toUtc(startDate).toISOString(),
     endDate: toUtc(endDate).toISOString(),
     unit,
-    timezone: canonicalizeTimezone(timezone),
+    timezone,
   };
 }
diff --git a/src/components/hooks/useTimezone.ts b/src/components/hooks/useTimezone.ts
index 3770c26bd..0e1fe6cd3 100644
--- a/src/components/hooks/useTimezone.ts
+++ b/src/components/hooks/useTimezone.ts
@@ -1,5 +1,5 @@
 import { setItem } from '@/lib/storage';
-import { TIMEZONE_CONFIG, TIMEZONE_LEGACY } from '@/lib/constants';
+import { TIMEZONE_CONFIG } from '@/lib/constants';
 import { formatInTimeZone, zonedTimeToUtc, utcToZonedTime } from 'date-fns-tz';
 import { useApp, setTimezone } from '@/store/app';
 import { useLocale } from './useLocale';
@@ -34,16 +34,5 @@ export function useTimezone() {
     return utcToZonedTime(date, timezone);
   };
 
-  const canonicalizeTimezone = (timezone: string): string => {
-    return TIMEZONE_LEGACY[timezone] ?? timezone;
-  };
-
-  return {
-    timezone,
-    saveTimezone,
-    formatTimezoneDate,
-    toUtc,
-    fromUtc,
-    canonicalizeTimezone,
-  };
+  return { timezone, saveTimezone, formatTimezoneDate, toUtc, fromUtc };
 }
diff --git a/src/components/metrics/EventsChart.tsx b/src/components/metrics/EventsChart.tsx
index 246772b3e..7301faf44 100644
--- a/src/components/metrics/EventsChart.tsx
+++ b/src/components/metrics/EventsChart.tsx
@@ -1,11 +1,10 @@
+import { useMemo, useState, useEffect } from 'react';
+import { colord } from 'colord';
 import { BarChart, BarChartProps } from '@/components/charts/BarChart';
-import { LoadingPanel } from '@/components/common/LoadingPanel';
 import { useDateRange, useLocale, useWebsiteEventsSeriesQuery } from '@/components/hooks';
 import { renderDateLabels } from '@/lib/charts';
 import { CHART_COLORS } from '@/lib/constants';
-import { generateTimeSeries } from '@/lib/date';
-import { colord } from 'colord';
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { LoadingPanel } from '@/components/common/LoadingPanel';
 
 export interface EventsChartProps extends BarChartProps {
   websiteId: string;
@@ -16,7 +15,7 @@ export function EventsChart({ websiteId, focusLabel }: EventsChartProps) {
   const {
     dateRange: { startDate, endDate, unit },
   } = useDateRange();
-  const { locale, dateLocale } = useLocale();
+  const { locale } = useLocale();
   const { data, isLoading, error } = useWebsiteEventsSeriesQuery(websiteId);
   const [label, setLabel] = useState<string>(focusLabel);
 
@@ -38,7 +37,7 @@ export function EventsChart({ websiteId, focusLabel }: EventsChartProps) {
         const color = colord(CHART_COLORS[index % CHART_COLORS.length]);
         return {
           label: key,
-          data: generateTimeSeries(map[key], startDate, endDate, unit, dateLocale),
+          data: map[key],
           lineTension: 0,
           backgroundColor: color.alpha(0.6).toRgbString(),
           borderColor: color.alpha(0.7).toRgbString(),
@@ -55,8 +54,6 @@ export function EventsChart({ websiteId, focusLabel }: EventsChartProps) {
     }
   }, [focusLabel]);
 
-  const renderXLabel = useCallback(renderDateLabels(unit, locale), [unit, locale]);
-
   return (
     <LoadingPanel isLoading={isLoading} error={error} minHeight="400px">
       {chartData && (
@@ -66,7 +63,7 @@ export function EventsChart({ websiteId, focusLabel }: EventsChartProps) {
           maxDate={endDate}
           unit={unit}
           stacked={true}
-          renderXLabel={renderXLabel}
+          renderXLabel={renderDateLabels(unit, locale)}
           height="400px"
         />
       )}
diff --git a/src/lib/constants.ts b/src/lib/constants.ts
index 195fe1be8..50a25b8d8 100644
--- a/src/lib/constants.ts
+++ b/src/lib/constants.ts
@@ -658,24 +658,3 @@ export const CURRENCIES = [
   { id: 'OMR', name: 'Omani Rial' },
   { id: 'GHS', name: 'Ghanaian Cedi' },
 ];
-
-export const TIMEZONE_LEGACY: Record<string, string> = {
-  'Asia/Batavia': 'Asia/Jakarta',
-  'Asia/Calcutta': 'Asia/Kolkata',
-  'Asia/Chongqing': 'Asia/Shanghai',
-  'Asia/Harbin': 'Asia/Shanghai',
-  'Asia/Jayapura': 'Asia/Pontianak',
-  'Asia/Katmandu': 'Asia/Kathmandu',
-  'Asia/Macao': 'Asia/Macau',
-  'Asia/Rangoon': 'Asia/Yangon',
-  'Asia/Saigon': 'Asia/Ho_Chi_Minh',
-  'Europe/Kiev': 'Europe/Kyiv',
-  'Europe/Zaporozhye': 'Europe/Kyiv',
-  'Etc/UTC': 'UTC',
-  'US/Arizona': 'America/Phoenix',
-  'US/Central': 'America/Chicago',
-  'US/Eastern': 'America/New_York',
-  'US/Mountain': 'America/Denver',
-  'US/Pacific': 'America/Los_Angeles',
-  'US/Samoa': 'Pacific/Pago_Pago',
-};