Time zone converter
What time will it be in Tokyo, New York or Sydney?
- Instant
- Free
- Private (processed locally)
- No sign-up
A world clock that answers the real question
“If I suggest 2 pm my time, what time is that for them?” Pick a date, a time and your zone: the tool shows the corresponding time in 30+ major cities, with the local date, the UTC offset and a badge whenever the day changes.
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Set your moment
Any date and time, or “Now”. Your zone is detected automatically.
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Read the table
Each city shows its time, local date and GMT offset. Your reference zone is highlighted.
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Spot the traps
The +1d/−1d badge flags conversions that cross midnight — the number one cause of missed meetings.
Why are time zones so tricky?
- Offsets are not all whole hours: India runs on UTC+5:30, Nepal on UTC+5:45.
- DST does not apply everywhere nor on the same dates: Europe switches late March/late October, the US mid-March/early November, Japan and China never.
- The southern hemisphere flips everything: when London falls back, Sydney springs forward.
- Rules change by political decision — hence a living database (IANA) beats any frozen table.
The tool relies on the time zone database built into your browser: no data is sent anywhere, and DST is applied for the exact date you pick.
Frequently asked questions
What time is it in Tokyo when it is 3 pm in New York?
5 am the next day (Tokyo is 14 hours ahead during DST, 13 in winter — the tool computes the exact value for your chosen date).
Is daylight saving time taken into account?
Yes, automatically. The tool relies on your browser’s IANA time zone database, which knows each country’s DST rules — including their different switch dates (March/November in the US, March/October in Europe).
Why do some cities show +1d or −1d?
When the conversion crosses midnight, the day changes: a 6 pm call in Los Angeles lands at 3 am the next day in Paris. The badge flags this date shift to prevent missed meetings.
How do I find an international meeting slot?
Pick a time in your zone and scan the relevant city rows: aim for 8 am–6 pm everywhere. For London–New York–Tokyo the window is narrow: 1–2 pm in London = 8–9 am in New York = 10–11 pm in Tokyo.
Is the data up to date?
The tool uses the IANA database built into your browser, updated along with it. Rule changes decided by governments (dropping DST, new zones) arrive through browser updates.