From 13ab84d50e7f8bfa4837ba8f7e48e97703b227dd Mon Sep 17 00:00:00 2001
From: Francis Cao <franciscao@gmail.com>
Date: Mon, 10 Nov 2025 17:26:06 -0800
Subject: [PATCH] Revert "add canonicalizeTimezone conversions"

This reverts commit a1d6204373b13bb4675de3aacc49a650b24318be.
---
 src/components/hooks/useDateParameters.ts |  4 ++--
 src/components/hooks/useTimezone.ts       | 15 ++-------------
 src/lib/constants.ts                      | 21 ---------------------
 3 files changed, 4 insertions(+), 36 deletions(-)

diff --git a/src/components/hooks/useDateParameters.ts b/src/components/hooks/useDateParameters.ts
index 16e12314..359bbc1f 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 3770c26b..0e1fe6cd 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/lib/constants.ts b/src/lib/constants.ts
index 195fe1be..50a25b8d 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',
-};