What are Time Zones?

Time zones are regions of the Earth that have the same standard time. The world is divided into 24 time zones, each generally 15 degrees of longitude wide, corresponding to one hour of time difference from Coordinated Universal Time (UTC).

How to Use This World Time Tool

1. View Popular Time Zones: See current times in major cities around the world at a glance.
2. Select Multiple Time Zones: Use the dropdown to select specific time zones you want to compare.
3. Add to Comparison: Click "Add Selected Time Zones" to see a detailed comparison.
4. Plan International Meetings: Use the comparison view to find suitable times across different regions.
5. Reset: Use the "Reset" button to clear your selection and start over.

Major Time Zones Around the World

• UTC-12: Baker Island, Howland Island
• UTC-8 (PST): Pacific Standard Time (Los Angeles, Vancouver)
• UTC-5 (EST): Eastern Standard Time (New York, Toronto)
• UTC (GMT): Greenwich Mean Time (London, Dublin)
• UTC+1 (CET): Central European Time (Paris, Berlin)
• UTC+3: Moscow Time, Arab Standard Time
• UTC+5:30 (IST): Indian Standard Time (Mumbai, New Delhi)
• UTC+8 (CST): China Standard Time (Beijing, Singapore)
• UTC+9 (JST): Japan Standard Time (Tokyo, Seoul)
• UTC+10 (AEST): Australian Eastern Standard Time (Sydney, Melbourne)

Daylight Saving Time

Many regions observe Daylight Saving Time (DST), where clocks are set forward by one hour during the warmer months to extend evening daylight. This practice affects time differences between regions during part of the year.

Tips for International Scheduling

• Consider working hours (typically 9 AM to 5 PM local time)
• Be mindful of weekends (which vary in some countries)
• Remember national holidays in the countries you're coordinating with
• Use tools like this to find overlapping business hours
• Always confirm time zones when scheduling meetings

Fun Facts About Time Zones

• China uses a single time zone (UTC+8) despite its vast size
• Nepal is 15 minutes offset from neighboring time zones
• Some countries have non-hourly offsets (e.g., India UTC+5:30, Nepal UTC+5:45)
• The International Date Line zigzags to accommodate country boundaries
• France has the most time zones of any country (12 due to overseas territories)