What is UTC and how does it relate to my timezone?

UTC (Coordinated Universal Time) is the global time standard from which all other timezones are measured as offsets, such as UTC+1 for Paris or UTC-5 for New York. Your local time equals UTC plus or minus your zone’s offset, which this converter calculates automatically for any date.

Does this tool account for Daylight Saving Time?

Yes. The converter detects whether DST is in effect for each timezone on the exact date you enter and adjusts the offset accordingly, so summer and winter conversions for the same city can differ by an hour when that zone observes DST.

Can I convert times for past or future dates?

Yes. The tool supports any date within your browser’s IANA timezone database, applying the historical or projected DST rules for that date. This makes it reliable for reviewing old meeting logs or planning events months ahead.

Which timezones are supported?

All IANA timezone database zones are supported — over 400 timezones covering every country and region, including fractional offsets like India’s UTC+5:30 and Nepal’s UTC+5:45. Use the search box to find any zone by name.

Timezone Converter — Convert Time Across 400+ Timezones

Convert any time between global timezones instantly with automatic Daylight Saving Time adjustment — all in your browser.

Quick select

Source timezone

Target timezone

Date

Time format

Time

Converted time

Time

UTC

Thu, Sep 24, 2026, 18:12

UTC+00:00

Target time

America/New_York

Thu, Sep 24, 2026, 14:12 EDT

UTC-04:00

UTC time: Thu, Sep 24, 2026, 18:12 UTC (UTC+00:00)

Time difference: -4h

Time across other zones

Timezone	Time	Offset
UTC	Thu, Sep 24, 2026, 18:12 UTC	UTC+00:00
Europe/London	Thu, Sep 24, 2026, 19:12 GMT+1	UTC+01:00DST
Europe/Paris	Thu, Sep 24, 2026, 20:12 GMT+2	UTC+02:00DST
America/New_York	Thu, Sep 24, 2026, 14:12 EDT	UTC-04:00
America/Chicago	Thu, Sep 24, 2026, 13:12 CDT	UTC-05:00
America/Los_Angeles	Thu, Sep 24, 2026, 11:12 PDT	UTC-07:00
Asia/Dubai	Thu, Sep 24, 2026, 22:12 GMT+4	UTC+04:00
Asia/Kolkata	Thu, Sep 24, 2026, 23:42 GMT+5:30	UTC+05:30
Asia/Shanghai	Fri, Sep 25, 2026, 02:12 GMT+8	UTC+08:00
Asia/Tokyo	Fri, Sep 25, 2026, 03:12 GMT+9	UTC+09:00
Australia/Sydney	Fri, Sep 25, 2026, 04:12 GMT+10	UTC+10:00

About the Timezone Converter — Convert Time Across 400+ Timezones tool

The Timezone Converter turns any date and time from one timezone into the correct local time in another, instantly and entirely in your browser. It uses the IANA timezone database — the same standard that powers operating systems and scheduling platforms — so every conversion respects the official UTC offset and historical Daylight Saving Time rules for each region.

Timezones exist because the Earth rotates, so solar noon happens at different moments across the globe. The world is divided into 24 standard offsets from Coordinated Universal Time (UTC), from UTC-12 in the Pacific to UTC+14 in parts of Oceania, with many regions using fractional offsets such as UTC+5:30 for India or UTC+5:45 for Nepal. This converter handles all of them, including zones that shift their offset twice a year.

Daylight Saving Time (DST) moves the clock forward by one hour during summer months in roughly 70 countries to make better use of daylight. The start and end dates differ by region — the United States and Europe switch on different days, while most of Asia and Africa do not observe DST at all. Because the converter checks the exact date you enter against each zone’s DST rules, a meeting scheduled in March and one scheduled in July can show a different offset for the same city, and the tool adjusts automatically.

Practical uses include scheduling international video calls without waking anyone at midnight, planning multi-leg travel itineraries across continents, coordinating release times for global product launches, and figuring out when a live webinar in London airs in your local time. Enter a source time, pick a destination zone, and read the converted result plus the time across other major zones in one glance.

How to use Timezone Converter — Convert Time Across 400+ Timezones

1Select your current timezone from the dropdown or use a quick-select button such as UTC, EST, or IST.

2Choose the destination timezone you want to convert to, or tap the swap button to reverse the direction.

3Enter the time and date you want to convert using the date and time picker.

4View the converted time instantly — DST-aware — alongside the offset and the same moment across other global zones.

How the browser-based processing works

Every timezone calculation in this tool runs locally in your browser using the built-in JavaScript Intl API and the IANA timezone database bundled with your operating system. When you enter a date and time, the converter resolves the correct UTC instant for that wall-clock value in the source timezone, then formats that instant in the destination timezone — applying the exact UTC offset and Daylight Saving Time rules in effect on the chosen date.

No date, time, or timezone selection is ever uploaded to a server. There is no network request during conversion, no temporary cloud copy, and no tracking of which zones you compare. Closing the tab discards everything, so you can plan sensitive meetings or business schedules with full privacy.

Because the conversion relies on your browser’s Intl implementation, accuracy matches the IANA tzdata version shipped with your device, and DST rules apply for past, present, and projected dates within that database. The 12-hour and 24-hour toggle changes only how results are displayed — the underlying instant stays identical.

Timezone Converter — Convert Time Across 400+ Timezones

Time across other zones

About the Timezone Converter — Convert Time Across 400+ Timezones tool

How to use Timezone Converter — Convert Time Across 400+ Timezones

How the browser-based processing works

Frequently asked questions

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