How does automatic DST handling work?

Our calculator uses JavaScript's built-in Intl.DateTimeFormat API which automatically accounts for Daylight Saving Time transitions based on the specific date you're converting. This ensures accuracy regardless of when DST changes occur in different regions.

What is Unix timestamp and how do I use it?

Unix timestamp is the number of seconds since January 1, 1970 (UTC). Enter a 10-digit timestamp to automatically populate the date and time fields, or see the timestamp for your current selection. This is useful for developers and system administrators.

How does the meeting planner work?

The meeting planner analyzes your specified business hours across all selected time zones and identifies time slots where all locations are within their business hours simultaneously. Results are shown in your local time zone for easy scheduling.

Can I convert time for past or future dates?

Yes! Our calculator works for any date, automatically handling historical and future DST changes. This is particularly useful for planning events, analyzing historical data, or scheduling future meetings across time zones.

Why do I see different time differences throughout the year?

Time differences between zones can change when regions enter or exit Daylight Saving Time at different dates. For example, the difference between New York and London varies between 4 and 5 hours depending on the time of year and DST transitions.

Universal Time Converter: World Clock & Meeting Planner

Convert time between any time zones, plan international meetings, and access a world clock. Features automatic DST handling and Unix timestamp conversion.

Convert Time

Your Time Zone

Date

Time

Destination Time Zones

Converted Times

Enter valid date and time to see conversions

Meeting Planner

Advanced Tools

Unix Timestamp

Quick Look (Current Time)

Time zones don't have to be confusing

Ever tried to schedule a call with someone in another country? It's a pain. What time is 3pm in Tokyo when you're in New York? This calculator figures it out instantly.

Plus it handles all that daylight saving time stuff automatically, so you don't have to remember when different countries change their clocks.

Scenarios

When you'll actually use this

Setting up calls with clients or colleagues in different countries
Planning trips and figuring out flight times
Working with developers who need Unix timestamps converted
Finding a time that works for everyone when half your team is remote

How to convert time zones

Set your source time

Select your timezone and enter the date and time you want to convert.

Add destination zones

Choose one or more destination time zones to see converted times.

Use meeting planner

Enable meeting planner to find overlapping business hours across all zones.

Quick world clock

Use quick look buttons to instantly see current time in major cities.

Understanding your results

Time conversions

Shows exact local time in each destination timezone with automatic DST handling.

Time differences

Displays hour offset from your source time (+ ahead, - behind).

Meeting suggestions

Identifies time slots when all selected zones are within business hours.

Time Zone FAQs

Global time made simple

Universal Time Converter: World Clock, Meeting Planner & Time Zone Tool

Convert time between any time zones with automatic DST handling. Features meeting planner for international coordination, world clock for major cities, and Unix timestamp conversion - all in your browser.

Any time zone conversion

Convert between any IANA time zones with automatic Daylight Saving Time handling.

Meeting planner

Find optimal meeting times across multiple time zones and business hours.

World clock & tools

Quick access to current times in major cities plus Unix timestamp conversion.

Comprehensive Methods & Features

Core time conversion

• Uses JavaScript Intl.DateTimeFormat with timeZone option for accurate conversions
• Automatically handles Daylight Saving Time transitions for all time zones
• Supports all IANA time zone identifiers (e.g., America/New_York, Europe/London)
• Real-time calculations update instantly as you change inputs

Meeting planner logic

• Analyzes business hours across all selected time zones
• Identifies overlapping time periods where all zones are within business hours
• Displays optimal meeting times in your local time zone
• Accounts for different business hour preferences per location

Time conversion topics covered

Universal Time ConverterWorld ClockTime Zone ConverterInternational Meeting PlannerGlobal Time Tool

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Important: This Universal Time Converter is designed for general time zone conversion and meeting planning purposes. While we use standard JavaScript APIs and IANA time zone data for accuracy, time zone rules and Daylight Saving Time transitions can change due to government decisions. For critical applications, always verify with official sources. The meeting planner assumes standard business hours and may not account for local holidays, cultural differences, or specific business practices. This tool is for informational purposes and should not be the sole basis for important scheduling decisions.

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