Time Zone Converter
Convert times between different time zones around the world
Time Zone Conversion
Select source and target time zones to convert a specific time
Enter date and time in your local time zone
Current Time Across Major Time Zones
Quick reference for current times in major cities around the world
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Date and time queries often connect across age, differences, time zones, and countdowns. These featured pages act as strong starting points for the most common time-based calculations.
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Time Zone Converter - Convert Time Between Time Zones (DST-Aware)
Planning a meeting across continents or catching a live event halfway around the world? Our Time Zone Converter makes it simple to calculate time differences with precision, accounting for Daylight Saving Time (DST) changes automatically. Convert Time Now
Convert Time Zones
Easily convert time between any two locations. Simply enter your date and time, then select the cities you want to compare.
- From: City/Zone Input
- To: City/Zone Input
Calculate Difference
How to Use the Time Zone Converter
We designed our tool to be intuitive and accurate. Follow these simple steps to get precise local times:
- Enter the Date and Time: Input the specific date and time you wish to convert. This is crucial because time differences can shift based on the time of year (due to DST).
- Select Your Locations: Search for cities rather than just time zones (e.g., "New York" instead of "EST"). This ensures we apply the correct local rules for that specific region.
- View the Conversion: instantly see the corresponding time in your destination city, along with the UTC offset and any active time alerts.
Why time zone conversions can change
Time is not as static as it seems. Governments frequently update their rules regarding Daylight Saving Time (DST), and these changes can happen with very little notice.
We rely on the IANA Time Zone Database (tzdb), the gold standard for computer-based timekeeping used by operating systems like Unix, Linux, and macOS. This database is regularly updated to reflect historical, current, and future time zone rules. By using this data, we ensure that your scheduled meeting in November calculates correctly, even if the clocks haven't changed yet today.
Time zones vs UTC offsets
It is common to confuse a Time Zone with a UTC Offset, but they are different concepts.
- UTC Offset: This is simply the difference in hours and minutes from Coordinated Universal Time (UTC), such as UTC-05:00.
- Time Zone: This is a geographic region with specific rules about time, including when (and if) to observe Daylight Saving Time.
For example, London is in the "Europe/London" time zone. In winter, its offset is UTC+00:00 (GMT), but in summer, it shifts to UTC+01:00 (BST). If you only use a static offset, your conversion will likely be wrong for half the year.
Avoid abbreviation confusion (EST/IST/CST)
We strongly recommend searching by city or region (e.g., "Chicago" or "America/Chicago") rather than using 3-letter abbreviations.
Abbreviations are often ambiguous. For instance:
- CST can mean Central Standard Time (North America), China Standard Time, or Cuba Standard Time.
- IST can mean India Standard Time, Irish Standard Time, or Israel Standard Time.
By focusing on the IANA region identifiers, we eliminate this confusion and ensure you are converting for the exact location you intend.
Troubleshooting
Why is the time difference different than it was last month? This is likely due to Daylight Saving Time (DST). One location may have moved their clocks forward or back, while the other did not. Our tool automatically accounts for these shifts based on the date you input.
Why can't I find "EST" in the search bar? To ensure accuracy, we prioritize City and Region names. Please search for a major city within that time zone (e.g., "New York" for Eastern Time).
The date changed in my conversion results. Is this an error? No, this is accurate. If you convert 11:00 PM in New York to Tokyo, the result will be the following day. We display date shifts clearly so you don't miss an appointment.
Frequently asked questions
What is UTC?
UTC stands for Coordinated Universal Time. It is the primary time standard by which the world regulates clocks and time. It does not observe Daylight Saving Time.
What is GMT?
GMT stands for Greenwich Mean Time. It is often used interchangeably with UTC in practice, though GMT is technically a time zone used in the UK and Africa, while UTC is a time standard.
What is the IANA Time Zone Database?
The IANA tzdb is a collaborative compilation of information about the world's time zones, primarily intended for use with computer programs and operating systems.
Does this converter handle half-hour time zones?
Yes. We accurately handle non-standard offsets, such as those in India (UTC+05:30), Nepal (UTC+05:45), and parts of Australia.
Why do some countries not use DST?
DST is largely a political and economic decision. Many countries near the equator do not use it because sunrise and sunset times do not vary enough to justify the change.
Can I convert a time in the past?
Yes. Our database includes historical time zone rules, so we can accurately convert times for dates in the past, accounting for the rules that were active at that specific time.
Is there a difference between "Standard Time" and "Daylight Time"?
Yes. Standard Time is the local time when DST is not in use (usually winter). Daylight Time is when clocks are advanced (usually summer).
How often is the Time Zone Database updated?
The database is updated periodically whenever a government announces a change to their timekeeping laws. We implement these updates to keep our tool precise.