Time Conversion Settings

Conversion Type Time Zone
Choose the type of time conversion you need
From Time Zone Asia/Kolkata (IST)
Select source time zone or use current location
To Time Zone America/New_York (EST)
Select destination time zone
Date & Time Now
Select specific date and time or use current time
Quick Presets Select Preset
Quickly select common time durations
Automatically adjust for DST when applicable
12:00 PM
IST (UTC+5:30)
Monday, Jan 1, 2025
1:30 AM
EST (UTC-5)
Monday, Jan 1, 2025
10.5 hours
Time Difference
Within Business Hours
Business Status

Major World Times

New York
1:30 AM
EST (UTC-5)
London
6:30 AM
GMT (UTC+0)
Tokyo
3:30 PM
JST (UTC+9)
Sydney
5:30 PM
AEST (UTC+10)

Time Unit Conversions

Unit Seconds Minutes Hours Days Weeks

Time Zone Map

UTC-12
UTC-8 to UTC+8
UTC+9 to UTC+12
International Date Line Most Populated Zones Asia-Pacific

About Time Conversion

The Time Converter helps you convert between different time zones, time units, and calculate time differences. Perfect for international scheduling, project planning, and understanding time relationships across the globe.

How Time Conversion Works

1

Time Zone Conversion

Target Time = Source Time + (Target UTC Offset - Source UTC Offset)

Adjusts for Daylight Saving Time automatically when enabled

2

Unit Conversion

1 minute = 60 seconds

1 hour = 60 minutes = 3,600 seconds

1 day = 24 hours = 1,440 minutes = 86,400 seconds

3

Time Difference

Duration = End Time - Start Time

Calculates in days, hours, minutes, and seconds

4

Business Hours

Standard business hours: 9 AM to 5 PM, Monday to Friday

Automatically adjusts for different time zones

Common Time Zone Abbreviations

Abbreviation Time Zone UTC Offset Major Cities
EST Eastern Standard Time UTC-5 New York, Toronto, Miami
CST Central Standard Time UTC-6 Chicago, Mexico City, Houston
MST Mountain Standard Time UTC-7 Denver, Phoenix, Salt Lake City
PST Pacific Standard Time UTC-8 Los Angeles, Vancouver, Seattle
GMT Greenwich Mean Time UTC+0 London, Dublin, Lisbon
CET Central European Time UTC+1 Paris, Berlin, Rome
IST Indian Standard Time UTC+5:30 Mumbai, Delhi, Kolkata
CST China Standard Time UTC+8 Beijing, Shanghai, Singapore
JST Japan Standard Time UTC+9 Tokyo, Seoul, Osaka
AEST Australian Eastern Time UTC+10 Sydney, Melbourne, Brisbane

Time Unit Equivalents

Seconds

  • 1 second = 1,000 milliseconds
  • 60 seconds = 1 minute
  • 3,600 seconds = 1 hour
  • 86,400 seconds = 1 day

Minutes & Hours

  • 1 minute = 60 seconds
  • 60 minutes = 1 hour
  • 24 hours = 1 day
  • 168 hours = 1 week

Days & Weeks

  • 1 day = 24 hours
  • 7 days = 1 week
  • ~30.44 days = 1 month
  • 365.25 days = 1 year

Business Time

  • 8 hours = 1 work day
  • 40 hours = 1 work week
  • ~160 hours = 1 work month
  • ~2,080 hours = 1 work year

Daylight Saving Time (DST)

Daylight Saving Time is the practice of setting clocks forward by one hour during warmer months to extend evening daylight. Important facts:

  • Northern Hemisphere: Typically March to November
  • Southern Hemisphere: Typically September to April
  • Spring Forward: Clocks move forward 1 hour in spring
  • Fall Back: Clocks move back 1 hour in autumn
  • Not Observed: Many countries near equator don't use DST
  • Exceptions: Arizona (US) and Saskatchewan (Canada) don't observe DST

International Date Line

The International Date Line (IDL) is an imaginary line on Earth's surface that runs from the North Pole to the South Pole and demarcates one calendar day from the next. When you cross the IDL:

  • West to East: Subtract one day (lose a day)
  • East to West: Add one day (gain a day)
  • Location: Roughly follows 180° longitude
  • Adjustments: Deviates to avoid splitting countries

Practical Applications

Travel Planning

Calculate jet lag, flight durations, and arrival times across time zones.

Virtual Meetings

Schedule international meetings at convenient times for all participants.

Project Management

Track project timelines across global teams in different time zones.

Broadcasting

Schedule global broadcasts and live events for optimal viewership.

Note: Time zone conversions consider current DST rules. Some locations may not observe DST or have unique rules. Always verify critical time conversions with official sources when scheduling important events. Business hours calculations assume standard 9 AM to 5 PM, Monday to Friday.

How do I convert between time zones?

To convert between time zones: Select source time zone, target time zone, and input time. The converter automatically calculates the time difference considering UTC offsets and Daylight Saving Time if enabled.

What is the difference between GMT and UTC?

GMT (Greenwich Mean Time) is a time zone, while UTC (Coordinated Universal Time) is a time standard. For most practical purposes, they are equivalent (GMT = UTC+0).

How does Daylight Saving Time affect time conversion?

DST moves clocks forward by 1 hour in spring and back by 1 hour in autumn. The converter automatically adjusts for DST when the feature is enabled and when the selected date falls within DST periods.

What is the International Date Line?

The International Date Line is an imaginary line at 180° longitude where the date changes. Crossing it eastward subtracts a day, crossing westward adds a day.

How accurate is the time zone conversion?

The converter uses current IANA time zone database data and considers DST rules. Accuracy depends on having up-to-date time zone rules for historical and future dates.