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Timezone Calculator

Last updated: June 2026

Base Time Settings

Select Target Timezones

Converted Target Times

UTC
Tue, Jun 16, 2026, 06:30 AM
-5.5 hrs from base
☀️ Day
New York
Tue, Jun 16, 2026, 02:30 AM
-9.5 hrs from base
🌙 Night
London
Tue, Jun 16, 2026, 07:30 AM
-4.5 hrs from base
☀️ Day
Tokyo
Tue, Jun 16, 2026, 03:30 PM
+3.5 hrs from base
☀️ Day

Overview

Base timezone: Kolkata. Drag the slider to quickly preview shifts across active regions.

UTCNew YorkLondon
Global Clocks Visualizer

Convert standard times across different worldwide timezones, compare time differences, and plan international events.

How it Works & Formula

Target Time = Base Time + (Target Offset - Base Offset)

Converts base date/time across active global timezones, dynamically calculating DST-aware offsets.

Practical Examples

Example 1: Global Sync

Convert 10:00 AM IST to London (BST) and New York (EDT) to coordinate team meetings.

Frequently Asked Questions

How does it handle Daylight Saving Time (DST)?

Using standard built-in Intl APIs, it dynamically adjusts offsets based on the specific calendar date and target region rules.

What is UTC?

Coordinated Universal Time (UTC) is the primary time standard by which the world regulates clocks and time, not affected by daylight savings.