Free Online Timezone Converter

Timezone
Converter

The fastest free Timezone Converter online. Drag a single slider to sync time across every zone simultaneously โ€” perfect for scheduling global meetings, tracking live events, and planning international travel.
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Why Time Zone Math Is Painful

Three moments everyone on a global team has lived through โ€” and how this Timezone Converter eliminates all of them.

Mental arithmetic across DST boundaries

"Is EST +5 or +6 right now?" Daylight Saving shifts quietly and your mental offset is suddenly wrong. The Timezone Converter auto-reads browser DST, always accurate.

Missed meetings by a whole day

A 10 PM Pacific call is already the next morning in Tokyo. Without a visual day-change warning it's frighteningly easy to open the wrong calendar slot โ€” one red badge prevents the mistake.

Copy-pasting times into Slack

Typing "3 PM EST / 8 PM GMT / 9 AM JST" by hand into a message is slow and error-prone. One click generates the full multi-zone line, ready to paste.

Timezone Converter

Drag the slider to sync time. Add any city to compare.

๐Ÿ‡ข๐Ÿ‡ญ
Shanghai / BeijingGMT+8Local
Thu, Jan 1
12:00 AM
UTC+8
0h6h12h18h24h
Add a time zone above to start comparing

Everything You Need in One Timezone Converter

Seven features designed for global teams, travelers, and remote workers โ€” all free, all instant.

Smart Local Zone Detection

The Timezone Converter reads your browser's locale the moment the page loads โ€” no permission prompts, no manual selection, instant baseline.

Multi-Zone Panels with Fuzzy Search

Type a city name like "London" or an abbreviation like "PST" in the search box. Add as many comparison panels as you need.

Visual 24-Hour Drag Slider

Slide through any hour (in 30-minute steps) and every added zone updates in real time โ€” the core experience of the Timezone Converter.

One-Click Meeting Time Copy

Generates a clean text line โ€” e.g. "10:00 AM EST / 3:00 PM GMT / 11:00 PM JST" โ€” ready to paste into email or Slack.

'Back to Now' Reset

No matter where you've dragged the slider, one tap snaps every panel back to the current real-world time instantly.

12 / 24-Hour Toggle

Switch between AM/PM (US style) and 24-hour format (EU style) globally across all panels with a single button.

Day-Difference Alert Badges

When a converted time crosses midnight, a red +1 Day or โˆ’1 Day badge appears on that panel โ€” preventing the classic wrong-day booking mistake.

How to Use the Timezone Converter

Four steps from page load to a shareable meeting time, under 30 seconds.

01

Your local time zone is detected automatically

When you open the Timezone Converter, the browser Intl API identifies your zone instantly. It becomes the base panel โ€” no action needed.

  • DST is handled automatically at all times
  • The current time is pre-loaded into the slider
๐Ÿ’ก Pro Tip:Your zone always stays pinned at the top and cannot be removed.
02

Search and add time zones to compare

Click the search box and type a city ("New York", "Dubai") or an abbreviation ("CET", "GMT+8"). Click Add โ€” repeat for every zone you need.

  • Fuzzy matching works โ€” "tok" finds Tokyo
  • Up to 6 comparison zones supported
๐Ÿ’ก Pro Tip:Common abbreviations like EST, PST, IST, JST, and CET are all recognized.
03

Drag the slider to explore times

Pull the horizontal slider left or right. All panels update in real time in 30-minute increments. Watch for red Day badges โ€” they flag overnight crossings.

  • +1 Day / โˆ’1 Day badges appear automatically
  • Toggle 12h / 24h anytime without losing your position
๐Ÿ’ก Pro Tip:Slowly drag through midnight to see exactly which cities flip to the next or previous day.
04

Copy the meeting time with one click

When you find the perfect hour, click Copy Meeting Time. A formatted string with all visible zones is added to your clipboard, ready to paste anywhere.

  • Format: 'Meeting starts at: 10:00 AM EST / 3:00 PM GMT'
  • Hitting 'Back to Now' resets the slider to the current real time
๐Ÿ’ก Pro Tip:Pair the copied text with a calendar invite link for frictionless scheduling.

Built for Real-World Global Workflows

Whether you're scheduling a team standup or booking a flight, the Timezone Converter has you covered.

Schedule Cross-Border Team Meetings

Add every teammate's city, drag the slider to find an hour where everyone is within working hours, and copy the multi-zone time string straight into Slack.

World map with multiple timezone clocks showing overlapping business hours for a global remote team

Catch Live Sports & Tech Events on Time

Apple Keynotes, World Cup finals, esports championships โ€” all announced in PT or ET. Plug in your city and know exactly when to sit down and watch.

Split-screen showing a sports broadcast schedule in Pacific Time alongside local timezone clock panels for fans in different countries

Plan International Travel Without the Jet-Lag Surprise

Compare departure and destination times side by side on the slider. Visualize the time gap, plan your sleep strategy, and tell family exactly when you land.

Airplane window view with departure city clock on the left and destination city clock on the right showing time difference on a world map background

Timezone Converter โ€” Frequently Asked Questions

Everything you need to know about using the Timezone Converter.

Does the Timezone Converter handle Daylight Saving Time automatically?

Yes. The converter uses the browser's built-in Intl.DateTimeFormat API, which always reflects the correct DST rules for every IANA time zone. You never need to remember whether a zone is currently on standard or daylight time.

How many time zones can I add at once?

You can add up to 6 comparison zones in addition to your auto-detected local zone, giving you 7 panels total โ€” enough for any global team standup.

What does the red +1 Day or โˆ’1 Day badge mean?

When the converted time crosses midnight relative to your base zone's date, the panel shows a colored badge indicating whether that city is one day ahead (+1 Day) or behind (โˆ’1 Day). This prevents booking the wrong calendar day.

Can I search by abbreviation like EST or PST?

Yes. The search box recognizes common abbreviations (EST, PST, CST, MST, GMT, CET, IST, JST, AEST, etc.) as well as city names and UTC offsets like GMT+8.

Is any data sent to a server?

No. The entire Timezone Converter runs in your browser using the native Intl API and JavaScript. No time queries, no personal data, and no server calls are made.

What does the 'Back to Now' button do?

It resets the slider to the current real-world time and refreshes all panels to live timestamps โ€” useful after you've explored hypothetical meeting times and want to return to the present.

Can I use the copied meeting time in Google Calendar?

Absolutely. The copied text (e.g. '10:00 AM EST / 3:00 PM GMT / 11:00 PM JST') can be pasted into the description or title of any calendar event, email, or messaging app.

Stop doing timezone math in your head.

The Timezone Converter gives you a drag-and-drop clock for the whole world โ€” free, instant, and private.