⏰ Time Zone Converter Tool

Convert time across world time zones instantly with our professional time zone converter. Real-time timezone comparisons, UTC conversions, and meeting planner for global coordination and travel planning.

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🕐 From Timezone

Time

Date

Timezone

🌍 To Timezone

Time

Date

Timezone

Time Conversion Result

12:00 PM

London Time

Time difference: +5 hours ahead of New York

Current Time in Major Cities with Day & Date

🗽 New York ↔ London

9:00 AM EST = 2:00 PM GMT
Most common business timezone pair
5-hour time difference

🌉 Los Angeles ↔ Tokyo

6:00 PM PST = 11:00 AM JST (+1 day)
Trans-Pacific business hours
17-hour time difference

🇫🇷 Paris ↔ Shanghai

10:00 AM CET = 5:00 PM CST
Europe-Asia coordination
7-hour time difference

🇮🇳 Mumbai ↔ New York

2:30 PM IST = 4:00 AM EST
India-US business overlap
10.5-hour time difference

🇦🇺 Sydney ↔ London

8:00 PM AEST = 10:00 AM GMT
Australia-UK coordination
11-hour time difference (varies with DST)

🏙️ Chicago ↔ Dubai

12:00 PM CST = 10:00 PM GST
Central US-Middle East
10-hour time difference

📅 Best Meeting Times

// US East Coast ↔ Europe
New York 9:00 AM = London 2:00 PM
New York 10:00 AM = Paris 4:00 PM
New York 11:00 AM = Berlin 5:00 PM

// Optimal overlap: 9:00 AM - 12:00 PM EST

Best time windows for transatlantic business meetings and calls.

🌏 Asia-Pacific Coordination

// US West Coast ↔ Asia
Los Angeles 6:00 PM = Tokyo 11:00 AM (+1 day)
Los Angeles 7:00 PM = Shanghai 11:00 AM (+1 day)
Los Angeles 8:00 PM = Sydney 3:00 PM (+1 day)

// Best overlap: 6:00 PM - 9:00 PM PST

Ideal scheduling for Pacific Rim business coordination.

🌍 Global Team Meetings

// Multi-timezone coordination
UTC 2:00 PM = Best compromise time
- New York: 9:00 AM EST
- London: 2:00 PM GMT  
- Mumbai: 7:30 PM IST
- Sydney: 1:00 AM AEDT (+1 day)

Optimal times for global team meetings across major business centers.

🕒 Daylight Saving Impact

// DST variations affect timing
Standard Time (Winter):
- EST vs GMT: 5 hours difference
- PST vs CET: 9 hours difference

Daylight Time (Summer):
- EDT vs BST: 5 hours difference  
- PDT vs CEST: 9 hours difference

How daylight saving time changes affect international scheduling.

Complete Guide to Time Zone Conversion

Everything you need to know about world time zones, time zone conversion, and global time coordination for business and travel.

🌍 What are Time Zones?

Time zones are geographical regions that observe a uniform standard time for legal, commercial, and social purposes. They help coordinate activities across different locations worldwide and account for the Earth's rotation.

Based on longitude and political boundaries
Usually differ by 1-hour increments
Some zones have 30 or 45-minute offsets
Essential for global business coordination

🕐 UTC and Time Standards

Coordinated Universal Time (UTC) is the global time standard used as a reference for all other time zones worldwide.

// Time Zone Offsets from UTC
UTC+0: London (GMT)
UTC-5: New York (EST)
UTC+1: Paris (CET)
UTC+9: Tokyo (JST)
UTC+5:30: Mumbai (IST)

🔧 Common Use Cases

International clock conversion is essential for various activities requiring global coordination.

International business meetings
Travel planning and flight schedules
Global team collaboration
International event scheduling
Financial market trading hours
Communication with overseas contacts

⚡ How Our Time Zone Converter Works

Our time zone converter uses JavaScript's built-in Intl.DateTimeFormat API for accurate timezone calculations.

// Conversion Process
Parse input time and date
Create Date object in source timezone
Apply timezone offset calculations
Format result in target timezone
Account for daylight saving time
Display time difference

🎯 Daylight Saving Time

Our converter automatically handles daylight saving time (DST) transitions for accurate time conversions year-round.

Automatic DST detection and adjustment
Accounts for different DST schedules globally
Handles DST transition dates accurately
Real-time DST status indication

📱 Mobile-Friendly Design

Access our time zone converter on any device with responsive design optimized for all screen sizes.

Touch-friendly timezone selection
Real-time clock updates
Optimized for mobile and desktop
No app installation required

Frequently Asked Questions

How does daylight saving time affect international scheduling? +

Daylight saving time can temporarily change time differences between locations. Not all countries observe DST, and those that do may have different start and end dates. Our converter automatically accounts for DST changes to ensure accurate time conversions year-round.

What's the time difference between GMT and IST? +

Indian Standard Time (IST) is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT). When it's 12:00 PM GMT in London, it's 5:30 PM IST in Mumbai. This offset remains constant as India doesn't observe daylight saving time.

How accurate is this time zone converter? +

Our time zone converter is highly accurate as it uses JavaScript's built-in Intl.DateTimeFormat API, which automatically handles timezone data, daylight saving time transitions, and historical timezone changes. It's updated with the latest timezone information maintained by the IANA Time Zone Database.

Can I convert times for any date in the future? +

Yes! Our converter can handle any date in the future, automatically accounting for planned daylight saving time transitions. This is particularly useful for scheduling meetings or events well in advance, ensuring accurate time conversion regardless of DST changes.

Why do some countries have 30-minute time zone offsets? +

Some countries use 30-minute (or even 45-minute) offsets to better align their local time with the sun's position. India uses UTC+5:30, Afghanistan uses UTC+4:30, and Nepal uses UTC+5:45. These offsets are chosen based on geographical location and national preferences.

How do I plan meetings across multiple time zones? +

Use our meeting planner tab to find optimal times. Consider business hours in each location, try to avoid very early morning or late evening times for participants, and be mindful of weekends and holidays. Tools like our converter help you visualize what time it will be in each location.

What's the International Date Line? +

The International Date Line is an imaginary line running roughly along the 180° longitude that determines where each new day begins. When you cross it eastward, you subtract a day; when crossing westward, you add a day. This affects time conversions between locations on opposite sides of the line.

Do I need an internet connection to use this tool? +

Yes, an internet connection is recommended for the most accurate and up-to-date timezone information. However, once loaded, the basic conversion functionality works offline using your device's built-in timezone data. For the most accurate results, especially regarding recent timezone changes, use with an internet connection.

⏰ Time Zone Converter Tool

🕐 From Timezone

🌍 To Timezone

🗽 New York ↔ London

🌉 Los Angeles ↔ Tokyo

🇫🇷 Paris ↔ Shanghai

🇮🇳 Mumbai ↔ New York

🇦🇺 Sydney ↔ London

🏙️ Chicago ↔ Dubai

📅 Best Meeting Times

🌏 Asia-Pacific Coordination

🌍 Global Team Meetings

🕒 Daylight Saving Impact

Most Popular Time Zone Conversions

🌍 UTC to EST/EDT

🇬🇧 London to Mumbai

🌉 LA to Berlin

🇯🇵 Tokyo to Sydney

Complete Guide to Time Zone Conversion

🌍 What are Time Zones?

🕐 UTC and Time Standards

🔧 Common Use Cases

⚡ How Our Time Zone Converter Works

🎯 Daylight Saving Time

📱 Mobile-Friendly Design

Frequently Asked Questions

200+ Forever Free Tools

Fast & Browser-Based

Mobile Optimized

Privacy Committed

⏰ Time Zone Converter Tool

🕐 From Timezone

🌍 To Timezone

🗽 New York ↔ London

🌉 Los Angeles ↔ Tokyo

🇫🇷 Paris ↔ Shanghai

🇮🇳 Mumbai ↔ New York

🇦🇺 Sydney ↔ London

🏙️ Chicago ↔ Dubai

📅 Best Meeting Times

🌏 Asia-Pacific Coordination

🌍 Global Team Meetings

🕒 Daylight Saving Impact

Most Popular Time Zone Conversions

🌍 UTC to EST/EDT

🇬🇧 London to Mumbai

🌉 LA to Berlin

🇯🇵 Tokyo to Sydney

Complete Guide to Time Zone Conversion

🌍 What are Time Zones?

🕐 UTC and Time Standards

🔧 Common Use Cases

⚡ How Our Time Zone Converter Works

🎯 Daylight Saving Time

📱 Mobile-Friendly Design

Frequently Asked Questions

Related Unit Converters

200+ Forever Free Tools

Fast & Browser-Based

Mobile Optimized

Privacy Committed

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