Converters

Time Zone Converter

Convert any date and time between world time zones. Detects your local timezone automatically and shows the UTC offset for each zone — instant conversion.

Local Zone Auto-detected
Date & Time Conversion
UTC Offset Shown
Instant
Browser-only

Date and time

From timezone

To timezone

Source (GMT+0)

Tue, Sep 15, 2026, 03:32:00 AM GMT+0

Converted (GMT+0)

Tue, Sep 15, 2026, 03:32:00 AM GMT+0

Quick reference

GMT+0 — UTC · GMT-4 — New York · GMT+1 — London · GMT+2 — Paris · GMT+5:30 — Kolkata · GMT+9 — Tokyo

Time zone converter

Convert a date and time between common IANA time zones. The browser's Intl.DateTimeFormat API applies daylight-saving rules and reports the offset for both source and destination zones.

Reliable scheduling

Always specify the source zone when arranging meetings, releases, or support coverage. DST changes can make fixed UTC offsets inaccurate across the year, so named IANA zones are preferred.

new Intl.DateTimeFormat("en-US", { timeZone: "America/New_York" }).format(new Date());

Swap source and destination zones to compare the reverse conversion instantly.

Frequently Asked Questions

How many time zones are supported?: All IANA time zones are supported, covering 400+ zones across all countries and territories including historical offsets.
Does it account for DST?: Yes. The converter uses the browser's Intl API which applies Daylight Saving Time rules automatically based on the selected date and time zone.
Can I convert a custom date and time?: Yes. Enter any date and time in the source zone and the tool will convert it accurately to the target zone.
What is UTC?: UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All time zones are expressed as UTC offsets, e.g. UTC+5:30 for India.

Disclaimer

This tool is provided for general informational and utility purposes only. Results may be inaccurate, incomplete, outdated, or contain errors. Always verify results before relying on or using them.

Some tools may use AI, automated processing, third-party services, or server-side processing. Do not rely on these tools as a substitute for professional advice.

Use at your own risk. BestToolOnline makes no guarantees regarding the accuracy, reliability, completeness, availability, or suitability of results, to the maximum extent permitted by applicable law.

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Time zone converter

Convert a date and time between common IANA time zones. The browser's Intl.DateTimeFormat API applies daylight-saving rules and reports the offset for both source and destination zones.

Reliable scheduling

Always specify the source zone when arranging meetings, releases, or support coverage. DST changes can make fixed UTC offsets inaccurate across the year, so named IANA zones are preferred.

new Intl.DateTimeFormat("en-US", { timeZone: "America/New_York" }).format(new Date());

Swap source and destination zones to compare the reverse conversion instantly.

Frequently Asked Questions

How many time zones are supported?

All IANA time zones are supported, covering 400+ zones across all countries and territories including historical offsets.

Does it account for DST?

Yes. The converter uses the browser's Intl API which applies Daylight Saving Time rules automatically based on the selected date and time zone.

Can I convert a custom date and time?

Yes. Enter any date and time in the source zone and the tool will convert it accurately to the target zone.

What is UTC?

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All time zones are expressed as UTC offsets, e.g. UTC+5:30 for India.

Disclaimer

Some tools may use AI, automated processing, third-party services, or server-side processing. Do not rely on these tools as a substitute for professional advice.