Turn a webinar or launch time into local times for teammates, customers, or guests in other cities.
Time Zone Converter
Choose a source city, date, and time to see the matching local time in another city. The converter uses your browser’s international timezone database and adjusts for daylight saving time when the selected date requires it.
Need the label, not the conversion? Use the UTC offsets and time zone abbreviations reference to decode CST, IST, BST, EST, half-hour offsets, and fixed UTC offsets.
How to use it
- Select the city where the time is defined.
- Enter the local date and time.
- Choose the target city and read the converted time, date, and offset.
Why time zone conversion matters
Time zone conversion is not just adding or subtracting a fixed number of hours. Daylight saving time, half-hour offsets, midnight crossings, and international date-line changes can all shift the local date.
This converter is useful for remote teams, travel planning, online events, live streams, software releases, and anyone who needs to communicate a time clearly across borders.
A good time zone converter should be tied to the selected date, not only to the current offset. Cities can move in and out of daylight saving time on different weekends, so a meeting that is five hours apart in March may be six hours apart in November.
For important calls, include the city name and the UTC time when sharing the result. Writing “10:00 in New York / 15:00 UTC / 16:00 in Madrid” reduces confusion when participants use different calendars or travel before the event.
This tool is especially useful for future events because it checks the rule for the date you entered. That matters for flight planning, product launches, webinars, interviews, support handovers, and release windows.
If you work with recurring meetings, check several dates rather than assuming the same conversion will hold all year. A weekly call can shift for a few weeks when one region changes clocks before another.
Avoid relying on short abbreviations such as CST, IST, or BST unless everyone already knows the context. The same abbreviation can mean different regions, while city-based time zones such as America/New_York or Europe/London are much less ambiguous.
For business use in the United States, Canada, the United Kingdom, Europe, India, Australia, and Latin America, always check the actual city rather than only the country. Large countries can span several time zones, and daylight saving rules can differ by state, province, or territory.
A useful habit is to convert the time twice: once for the meeting owner and once for the person most likely to be affected by the date change. That catches cases where an evening in one place becomes early morning or the previous day somewhere else.
Where this converter saves time
Check whether a time crosses midnight so you do not send the wrong calendar date.
Confirm offsets during daylight saving transitions before you publish an event or travel plan.
Common conversion mistakes
- Assuming the difference between two cities is always fixed. DST changes can shift it part of the year.
- Quoting a time without the city or timezone name when the audience spans multiple regions.
- Forgetting that the target city may land on the previous or next calendar day.
Practical ways to share the result
- Include both the source and target city in the message: “3:00 PM New York / 8:00 PM London.”
- Use 24-hour time for cross-border operational work to avoid AM/PM confusion.
- When the meeting matters, share the UTC offset or send a calendar invite after checking the converted time.
Worked examples
A 15:00 event in New York on 2026-06-02 is 20:00 in London, 21:00 in Berlin, and 04:00 the next day in Tokyo.
For a product launch, convert the same source time into every customer region before publishing the announcement.
Before travel, check both the departure city and arrival city so overnight flights do not hide a date change.
FAQ
Does this account for daylight saving time?
Yes. The conversion uses the IANA timezone rules available in your browser for the specific date you select.
Why can the converted date be different?
When two locations are many hours apart, the target city may already be on the previous or next calendar day.
Why should I choose a city instead of a timezone abbreviation?
City-based zones include the correct daylight saving rule for that place. Abbreviations such as CST or IST can refer to more than one region.
Can the offset between two cities change during the year?
Yes. One country may change clocks earlier, later, or not at all, so the offset between two cities can change for several weeks.
Is UTC the safest time to share?
UTC is useful as a neutral reference, but for people it is best to share UTC plus the local city times they will actually see on their calendars.
Does this work for future dates?
Yes. The converter uses the timezone rules available in your browser for the selected date, including known daylight saving transitions.