世界時鐘是一個即時顯示全球主要城市當地時間的專業工具,讓您能夠一目了然地查看不同時區的當前時間。無論您是跨國企業管理者、遠端工作者、國際旅行者,還是金融交易員,世界時鐘都能幫助您精準掌握全球時間動態。A world clock is a professional tool that displays local times of major cities around the globe in real-time, allowing you to see current times across different time zones at a glance. Whether you're a multinational business manager, remote worker, international traveler, or financial trader, a world clock helps you precisely track global time dynamics.
🌍 核心功能Core Features
即時時間顯示Real-Time Display:自動更新顯示全球 400+ 個主要城市的當地時間: Auto-updates to show local times for 400+ major cities worldwide
洞察Insight:台北下午 2 點時,只有亞太地區處於工作時間,歐美都在非工作時間。適合處理亞太事務,不適合緊急聯繫歐美同事。: At 2 PM Taipei time, only Asia Pacific is in business hours while Europe and Americas are off. Suitable for Asia Pacific matters, not ideal for urgent contact with European/American colleagues.
時間線視圖(進階功能)Timeline View (Advanced Feature)
切換到「時間線視圖」模式,以 24 小時時間軸顯示所有城市:Switch to "Timeline View" mode to display all cities on a 24-hour axis:
建議Recommendation:台北晚上 21:00-23:00 是唯一可行時段,但對台北參與者較晚。可考慮輪替制或非同步溝通。: Taipei evening 21:00-23:00 is the only viable slot, but late for Taipei participants. Consider rotating schedules or asynchronous communication.
3.4 自訂時區功能3.4 Custom Timezone Feature
建立自訂時區Create Custom Timezones
除了預設城市,還可建立自訂時區標籤:Besides preset cities, you can create custom timezone labels:
點擊「+ 自訂時區」Click "+ Custom Timezone"
輸入自訂名稱(如「客戶A總部」、「專案團隊」)Enter a custom name (e.g., "Client A HQ", "Project Team")
選擇對應的時區(從 UTC-12 到 UTC+14)Select the corresponding timezone (UTC-12 to UTC+14)
最大時差Maximum Difference:全球最東(UTC+14)與最西(UTC-12)時區相差 26 小時,可能相差兩個日期: Easternmost (UTC+14) and westernmost (UTC-12) zones differ by 26 hours, potentially spanning two dates
Q3:夏令時如何自動處理?我需要手動調整嗎?Q3: How is Daylight Saving Time handled? Do I need to adjust manually?
A:完全自動處理,無需任何手動操作:Fully automatic, no manual adjustment needed:
自動偵測Auto Detection:工具會根據當前日期和城市,自動判斷是否處於夏令時期間: Tool automatically determines DST status based on current date and city
UTC 偏移自動調整Auto UTC Offset:夏令時期間偏移量會自動 +1 小時: UTC offset automatically adds +1 hour during DST
DST 標記DST Badge:處於夏令時的城市會顯示「DST」標誌: Cities in DST display a "DST" indicator
歷史與未來Past & Future:查看過去或未來日期時,會應用該時期的正確規則: When viewing past or future dates, correct rules for that period apply
範例Example::
紐約冬季(11月-3月):UTC-5 (EST)New York Winter (Nov-Mar): UTC-5 (EST)
紐約夏季(3月-11月):UTC-4 (EDT),自動 +1 小時New York Summer (Mar-Nov): UTC-4 (EDT), auto +1 hour
Q4:我的城市列表會保存嗎?換電腦/手機後還在嗎?Q4: Will my city list be saved? Will it persist on other devices?
A:設定保存在瀏覽器本地儲存空間:Settings are saved in browser local storage:
自動保存Auto Save:每次新增、移除、排序城市時自動儲存: Automatically saves when adding, removing, or reordering cities
儲存位置Storage Location:瀏覽器的 LocalStorage(不會上傳到伺服器): Browser's LocalStorage (not uploaded to any server)
同一裝置Same Device:在同一台電腦/手機的同一瀏覽器中,設定會保留: Settings persist on the same computer/phone in the same browser
不同裝置Different Devices:換電腦、換手機、或換瀏覽器後,設定不會同步(隱私考量): Settings don't sync across devices or browsers (for privacy)
手動備份Manual Backup:可使用「匯出設定」功能將配置匯出為 JSON 檔案,在其他裝置匯入: Use "Export Settings" to save configuration as JSON, then import on other devices
清除 Cache 影響Cache Clear Impact:清除瀏覽器快取時若勾選「Cookie 和網站資料」,設定會被清除: Clearing browser cache with "Cookies and site data" checked will erase settings
Q5:可以同時顯示幾個城市?有上限嗎?Q5: How many cities can I display simultaneously? Is there a limit?
A:技術上無上限,但建議合理使用:Technically unlimited, but reasonable usage is recommended:
建議數量Recommended:5-15 個城市最佳(頁面載入快,易於瀏覽): 5-15 cities is optimal (fast loading, easy to browse)
技術上限Technical Limit:可新增 100+ 個城市,但可能影響效能: Can add 100+ cities, but may affect performance
效能考量Performance::
城市過多會增加頁面渲染負擔Too many cities increases page rendering load
手機螢幕較小,建議不超過 10 個On mobile screens, recommend no more than 10
桌面電腦可處理更多城市Desktop computers can handle more cities
替代方案Alternative:使用「群組」功能分類管理,需要時切換顯示: Use "Groups" feature to organize and switch between displays as needed
5. 進階技巧5. Advanced Tips
5.1 自訂時區建立5.1 Custom Timezone Creation
建立專屬的自訂時區標籤,適用於特殊需求:Create custom timezone labels for special requirements:
虛擬團隊時區Virtual Team Timezone:為分散在不同城市的團隊成員建立統一標籤: Create unified labels for team members across different cities
客戶時區Client Timezone:快速識別特定客戶的當地時間: Quickly identify specific client's local time
專案時區Project Timezone:標記專案相關的所有時區: Mark all timezones related to a project
5.2 會議時間建議演算法5.2 Meeting Time Suggestion Algorithm
了解會議時間建議的運作原理:Understanding how meeting time suggestions work:
收集參與時區Collect Timezones:列出所有參與城市的時區: List all participating cities' timezones
設定工作時間Set Working Hours:預設為 9:00-18:00,可自訂: Default 9:00-18:00, customizable
尋找重疊時段Find Overlapping Slots:計算所有時區都在工作時間內的時段: Calculate when all timezones are within working hours
優先級排序Priority Ranking::
完美時段(所有城市都在 9:00-18:00 內)Perfect slots (all cities within 9:00-18:00)
次優時段(1-2 個城市稍早或稍晚)Suboptimal slots (1-2 cities slightly early or late)
妥協時段(部分城市在非理想時間)Compromise slots (some cities at non-ideal times)
避免極端時間Avoid Extreme Times:排除深夜(23:00-06:00)和用餐時間(12:00-13:00): Exclude late night (23:00-06:00) and lunch time (12:00-13:00)
5.3 JavaScript 程式碼範例5.3 JavaScript Code Examples
使用 JavaScript 建立簡易世界時鐘:Build a simple world clock using JavaScript:
案例 1:全球遠端團隊協作儀表板Case 1: Global Remote Team Collaboration Dashboard
📋 背景📋 Background
一家軟體公司的工程團隊分布在 5 個時區:台北、班加羅爾、倫敦、紐約、舊金山。專案經理需要一個清晰的視覺化工具,隨時掌握每個團隊成員的當地時間和工作狀態。A software company's engineering team is spread across 5 timezones: Taipei, Bangalore, London, New York, and San Francisco. The project manager needs a clear visualization tool to track each team member's local time and work status.
🎯 需求🎯 Requirements
即時查看所有團隊成員的當地時間View all team members' local times in real-time
識別哪些成員當前在線上工作Identify which members are currently online and working
找出適合同步會議的時段Find suitable times for synchronous meetings
避免在成員的非工作時間發送緊急訊息Avoid sending urgent messages during off-hours
✅ 解決方案✅ Solution
設定團隊時區Set Up Team Timezones::
新增 5 個城市:台北、班加羅爾、倫敦、紐約、舊金山Add 5 cities: Taipei, Bangalore, London, New York, San Francisco
建立「工程團隊」群組,將這 5 個城市加入Create "Engineering Team" group with all 5 cities
快速識別緊急問題應該聯繫哪個時區的成員Quickly identify which timezone's members to contact for urgent issues
案例 2:國際活動直播時間提醒Case 2: International Event Livestream Reminder
📋 背景📋 Background
一位科技愛好者想觀看 Apple 新品發布會直播。發布會在美國太平洋時間舉行,但他住在台北,需要準確知道直播開始的當地時間,並設定提醒。A tech enthusiast wants to watch an Apple product launch livestream. The event is in US Pacific Time, but they live in Taipei and need to know the exact local start time to set a reminder.
🎯 活動資訊🎯 Event Info
Apple 發布會Apple Event:2025 年 3 月 15 日(週六)上午 10:00(太平洋時間 PDT): March 15, 2025 (Saturday) 10:00 AM (Pacific Time PDT)
✅ 使用世界時鐘查詢✅ Using World Clock to Query
新增相關城市Add Relevant Cities::
台北(當地時間)Taipei (local time)
舊金山/洛杉磯(太平洋時間,發布會所在地)San Francisco/Los Angeles (Pacific Time, event location)
若使用標準時間計算會錯誤(差 1 小時)Using standard time would be wrong (off by 1 hour)
📊 洞察📊 Insights
使用世界時鐘避免了常見錯誤:Using World Clock avoids common mistakes:
❌ 常見錯誤 1:忘記夏令時,計算為 02:00(實際是 01:00)❌ Common Error 1: Forgetting DST, calculating as 02:00 (actually 01:00)
❌ 常見錯誤 2:日期混淆,設定為 3/15 而非 3/16❌ Common Error 2: Date confusion, setting 3/15 instead of 3/16
✅ 正確做法:使用世界時鐘自動處理所有複雜規則✅ Correct approach: Use World Clock to auto-handle all complex rules
案例 3:全球股市開盤追蹤Case 3: Global Stock Market Hours Tracking
📋 背景📋 Background
一位投資者需要追蹤全球主要股市的開盤和收盤時間,以便掌握最佳交易時機和市場動態。An investor needs to track major global stock market opening and closing times to seize optimal trading opportunities and monitor market dynamics.
🎯 目標🎯 Goal
建立一個全球股市時鐘,即時顯示各大股市的當地時間和交易狀態(開盤/收盤)。Create a global stock market clock that displays local times and trading status (open/closed) for major exchanges in real-time.
✅ 設定全球股市時鐘✅ Setting Up Global Stock Market Clock
新增主要金融中心Add Major Financial Centers::
股市Exchange
城市City
交易時間(當地時間)Trading Hours (Local)
時區Timezone
東京證交所Tokyo Stock Exchange
東京Tokyo
09:00 - 15:00
UTC+9
香港交易所Hong Kong Exchange
香港Hong Kong
09:30 - 16:00
UTC+8
上海證交所Shanghai Stock Exchange
上海Shanghai
09:30 - 15:00
UTC+8
新加坡交易所Singapore Exchange
新加坡Singapore
09:00 - 17:00
UTC+8
倫敦證交所London Stock Exchange
倫敦London
08:00 - 16:30
UTC+0/+1
紐約證交所NYSE
紐約New York
09:30 - 16:00
UTC-5/-4
那斯達克NASDAQ
紐約New York
09:30 - 16:00
UTC-5/-4
建立「股市」群組Create "Markets" Group::
將所有金融中心城市加入「全球股市」群組Add all financial center cities to "Global Markets" group
設定自訂工作時間為各股市的交易時間Set custom working hours to each exchange's trading hours
時段分析Session Analysis(以台北時間為基準): (based on Taipei time):
台北時間Taipei Time
開盤中的股市Open Markets
備註Notes
08:00 - 09:00
東京Tokyo
亞洲市場開始Asian markets start
09:30 - 15:00
東京、香港、上海、新加坡Tokyo, HK, Shanghai, Singapore
亞洲交易高峰Asian trading peak
16:00 - 17:00
倫敦、新加坡London, Singapore
歐亞重疊Europe-Asia overlap
17:00 - 22:30
倫敦London
歐洲市場European session
21:30 - 22:30
倫敦、紐約London, New York
🔥 歐美重疊(流動性最高)🔥 EU-US overlap (highest liquidity)
22:30 - 05:00
紐約New York
美國市場US session
📊 投資洞察📊 Investment Insights
透過世界時鐘追蹤股市,投資者發現:By tracking markets with World Clock, investors discover:
Tool Master 世界時鐘Tool Master World Clock:: 立即使用Use Now 本站提供的專業世界時鐘工具,100% 本地處理Professional world clock tool provided by this site, 100% local processing
Tool Master 時區換算器Tool Master Timezone Converter:: 立即使用Use Now 精準轉換不同時區的時間Precisely convert times between different timezones
TimeAndDate.com:: 世界時鐘World Clock 權威的世界時間查詢網站Authoritative world time reference website
開始使用專業的世界時鐘工具,一目了然掌握全球時間。100% 本地處理,保護您的隱私。Start using the professional world clock tool to view global times at a glance. 100% local processing to protect your privacy.