Major World Time Zones
| City | Time Zone | UTC Offset |
|---|---|---|
| New York | EST/EDT | UTC−5/−4 |
| Los Angeles | PST/PDT | UTC−8/−7 |
| London | GMT/BST | UTC+0/+1 |
| Paris | CET/CEST | UTC+1/+2 |
| Dubai | GST | UTC+4 |
| Tokyo | JST | UTC+9 |
| Sydney | AEDT | UTC+11 |
Timezone Converter
Convert any time between world time zones instantly. Select a date and time in one zone and see what it is in any other zone. Also shows current time in major cities worldwide.
Time Zone Converter
Frequently Asked Questions
What is UTC?
UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks and time. It replaced GMT as the standard but is effectively the same. All time zones are expressed as offsets from UTC (e.g., UTC+5:30 for India, UTC−5 for US Eastern Standard Time).
Why does daylight saving time complicate conversions?
Daylight Saving Time (DST) shifts clocks by 1 hour seasonally in many countries, but not all — some states, countries, and regions don't observe DST. This means the time difference between two zones can change twice per year. This converter uses your browser's built-in timezone handling via the Intl API for accurate conversions.
About the Timezone Converter
This free timezone converter helps you get accurate results instantly without needing to work through the math manually. Whether you need a quick estimate or a precise figure, having a reliable tool on hand saves time and reduces errors compared to manual calculation.
How to Use This Calculator
- Enter your values in the input fields above. Each field is labeled to guide you.
- Double-check your inputs — results are only as accurate as the numbers you enter.
- Click the Calculate button to see your result instantly.
- Use the result for your planning, budgeting, or decision-making.
Why Accurate Calculations Matter
Small errors in general calculations can compound into significant problems. A 1% miscalculation in a budget or measurement can translate to hundreds or thousands of dollars in wasted resources, or result in having to redo work entirely. This calculator uses the standard formulas and methods to give you reliable results you can trust.
Tips for Getting the Best Results
- Use consistent units throughout (all in feet, all in dollars, etc.)
- For estimates, add a 10% buffer to account for real-world variables
- Save your result by taking a screenshot or writing it down before closing the page
- For decisions involving significant money or safety, verify results with a qualified professional
Frequently Asked Questions
Is this calculator free? Yes — completely free with no account, login, or payment required. Use it as many times as you need.
How accurate are the results? This calculator uses the standard formulas for timezone converter calculations. Results are accurate for typical use cases. For specialized or high-stakes applications, consult a professional.
Does it work on mobile? Yes. This calculator is fully responsive and works on smartphones, tablets, and desktops.