How is this different from your Timezone Converter?

The Converter is for a single point in time: "What time is 3 PM New York in Tokyo?" One question, one answer. The Meeting Planner is for a recurring decision: "If I have teammates in NYC, London, Bangalore, and Sydney, what hours work for everyone?" You add all participants, see all 24 hours rendered per timezone with work-windows highlighted, and the tool shows you the intersection. If there is no overlap, it tells you so (so you stop hunting for one and accept that someone must compromise).

Does this handle DST?

Yes. We use the browser's `Intl.DateTimeFormat` API which carries the IANA timezone database. The hour offsets are computed against the date you select, so the Beijing↔NYC view is 12h apart on January 15 and 13h apart on July 15 — automatically. You don't have to remember which week clocks change in which country.

Can I customize "working hours" — my team works 10 to 7?

Yes. The work-start and work-end sliders apply globally to all participants. If you want per-person hours (e.g. one teammate works 7-3 because of childcare, others work 10-7), the workaround is to model THAT person's "working hours" in your local time and add their timezone separately. Future versions will support per-person hours; for now, the global slider covers 90% of common cases.

What if there's no overlap? Some of my teammates are 12 hours apart.

Then the "overlap" row will show all 24 hours as non-overlap and the indicator will say "No common working hours". This is honest information — Beijing (9-6) and San Francisco (9-6) share ZERO common working hours in winter (the closest you can get is someone working at 7 AM or 10 PM). The tool's job is to surface that math so you can have the right conversation: "we either rotate the early/late slot, or we go async."

Does this store my team list?

No, by design. The roster lives in the browser tab only — refresh and you start fresh. That's because the roster often contains information you don't want logged anywhere (e.g. an early-stage company's engineering hires, before public announcement). If you want to persist, copy the timezone list to a note — it's just IANA strings.

The 6 AM founder proving the EU sync can't move

You're in San Francisco, your two senior engineers are in Berlin, and standup keeps landing at 6 AM your time. Add SF, Berlin, and your PM in London, set work hours to 9-18, and the overlap row shows the only shared window is 9-10 AM Berlin, which is midnight in SF. Now you have the proof that the team has to rotate the early slot, not just you eating it daily.

Scheduling a 4-region all-hands without a 24-hour gap

Engineering in Bangalore, sales in NYC, support in São Paulo, and leadership in Sydney. You add all four and instantly see there's no hour where everyone is in 9-18. Drag the work-end slider to 20 and a thin overlap appears at NYC 8 PM / Bangalore 6:30 AM. That tells you the all-hands needs two recordings or a rotating live slot, not a single magic time.

Booking a client call across Dubai, London, and Chicago

A consultant juggling three clients adds Dubai, London, and Chicago, keeps hours at 9-18, and finds a clean 3-hour overlap: 5-7 PM Dubai is 2-4 PM London is 8-10 AM Chicago. You pick 5 PM Dubai, send one invite, and skip the back-and-forth of three people guessing each other's afternoon.

Checking whether a winter slot survives the DST shift

You locked a recurring NYC-London call at 10 AM NYC in January, a 5-hour gap. Switch the date to July 15 and the offset stays 5h because both shift together, so the slot holds. But for an NYC-Phoenix call, July changes the gap because Phoenix skips DST. Checking the summer date first saves a calendar-wide reschedule three months later.

Timezone Meeting Planner — Find the Overlap, DST-aware

Plan meetings across timezones — see when everyone's working hours overlap.

Runs locally
Category Calculator
Best for Getting a realistic range before a purchase, plan, workout, or schedule decision.

Add timezoneLabel (optional)

Working hours (9:00)— (18:00)Reference date (DST-aware)

UTC	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23
BeijingAsia/Shanghai	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07
New YorkAmerica/New_York	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19
LondonEurope/London	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00

No common working hours — someone must compromise.

What this tool does

Free online meeting planner for distributed teams and international clients. Add as many cities or IANA timezones as you need (Beijing, San Francisco, London, São Paulo, Sydney, Mumbai, Dubai — 30+ presets, or pick any zone from the browser's full IANA list) and see a synchronized 24-hour timeline where each row shows the local hour, working hours highlighted (9 AM - 6 PM by default, customizable), and the overlap window — the hours where EVERY participant is awake and at work — auto-highlighted in cyan. Drag the work-window sliders to model "what if my team's hours are 10-7 instead of 9-6" or "what if I count 8 AM as acceptable for an important call". Built for the remote-team founder who wakes up at 6 AM to take the EU sync and wants proof the meeting actually has to be at that hour. Uses the browser's IANA timezone database (Intl.DateTimeFormat), so DST transitions are automatic and forever up-to-date — Beijing↔NYC is 12h apart in winter and 13h in summer, computed live without you remembering. 100% client-side; your team roster never leaves the tab. Pair with our Timezone Converter when you need a single-point conversion, or with the Date Difference calculator for project-window math.

Tool details

Input: Text + Numbers; The page exposes text boxes, numeric controls, file pickers, or structured inputs depending on the tool.
Output: Live result; The result area focuses on usable output, with copy, download, or preview actions when supported.
Privacy: Browser-side processing; The main tool logic does not call an external API, so inputs normally stay in the current tab.
Save / share: No account required; Open the page and use it; whether results survive refresh depends on the tool.
Performance budget: Initial JS <= 14 KB; No WASM budget is declared, keeping the tool quick to open on mobile.
Best fit: Calculator · Operations; Category and role tags drive related tools, internal links, and quick fit checks.

How to use

1. Input

Paste or drop your content into the tool panel.
2. Process

Click the button. All processing is local in your browser.
3. Copy / Download

Copy the result or download to disk in one click.

How Timezone Meeting Planner fits into your work

Use it for fast estimates, comparisons, and planning numbers before you make the final call.

Calculation jobs

Getting a realistic range before a purchase, plan, workout, or schedule decision.
Comparing scenarios by changing one input at a time.
Turning rough assumptions into a number you can discuss.

Calculation checks

Double-check units, dates, rates, and rounding assumptions.
Treat health, finance, tax, and legal outputs as planning aids, not professional advice.
Save the inputs that produced an important result so you can reproduce it later.

Good next steps

These links move the current task into a more complete workflow.

Real-world use cases

The 6 AM founder proving the EU sync can't move
You're in San Francisco, your two senior engineers are in Berlin, and standup keeps landing at 6 AM your time. Add SF, Berlin, and your PM in London, set work hours to 9-18, and the overlap row shows the only shared window is 9-10 AM Berlin, which is midnight in SF. Now you have the proof that the team has to rotate the early slot, not just you eating it daily.
Scheduling a 4-region all-hands without a 24-hour gap
Engineering in Bangalore, sales in NYC, support in São Paulo, and leadership in Sydney. You add all four and instantly see there's no hour where everyone is in 9-18. Drag the work-end slider to 20 and a thin overlap appears at NYC 8 PM / Bangalore 6:30 AM. That tells you the all-hands needs two recordings or a rotating live slot, not a single magic time.
Booking a client call across Dubai, London, and Chicago
A consultant juggling three clients adds Dubai, London, and Chicago, keeps hours at 9-18, and finds a clean 3-hour overlap: 5-7 PM Dubai is 2-4 PM London is 8-10 AM Chicago. You pick 5 PM Dubai, send one invite, and skip the back-and-forth of three people guessing each other's afternoon.
Checking whether a winter slot survives the DST shift
You locked a recurring NYC-London call at 10 AM NYC in January, a 5-hour gap. Switch the date to July 15 and the offset stays 5h because both shift together, so the slot holds. But for an NYC-Phoenix call, July changes the gap because Phoenix skips DST. Checking the summer date first saves a calendar-wide reschedule three months later.

Common pitfalls

Treating offsets as fixed year-round. Beijing-NYC is 12h in winter but 13h in summer, so check the actual meeting date instead of memorizing one number.
Assuming every US zone shifts together. Phoenix (Arizona) skips DST, so an NYC-Phoenix gap is 2h in winter and 3h in summer, which quietly breaks a recurring call.
Forcing a single live time when there's genuinely no overlap. If Beijing 9-18 and SF 9-18 share zero hours, rotate the early/late slot or go async instead of hunting forever.

Privacy

Everything runs in your browser tab. Your participant list and timezones are never sent to a server or written to your address bar, so a roster that hints at unannounced hires or a client list stays private. Refresh and the list clears, which means nothing about who you meet with is logged anywhere.

FAQ

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Timezone Meeting Planner — Find the Overlap, DST-aware

What this tool does

Tool details

How to use

1. Input

2. Process

3. Copy / Download

How Timezone Meeting Planner fits into your work

Calculation jobs

Calculation checks

Good next steps

Real-world use cases

The 6 AM founder proving the EU sync can't move

Scheduling a 4-region all-hands without a 24-hour gap

Booking a client call across Dubai, London, and Chicago

Checking whether a winter slot survives the DST shift

Common pitfalls

Privacy

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