Timezone Converter
Working across cities means converting times in your head, and daylight saving makes it worse. This free timezone converter picks any two zones from a global list, takes an HH:MM time, and returns the exact equivalent local time in the other zone — privately, with no server needed.
What is a Timezone Converter?
A timezone converter takes a time of day in one time zone and shows what it equals in another. It matches common IANA zone names such as America/New_York, Europe/London and Asia/Kolkata, so you can plan a call, a meeting or a flight with confidence.
Times are messy because of UTC offsets and daylight saving time. New York, for instance, is UTC-5 in winter and UTC-4 in summer, so a fixed offset from a list is often wrong. This converter uses each zone’s actual rules from the browser’s time database, so the result respects DST automatically for the date you pick.
People use a timezone converter to schedule meetings with remote teams, to find a good hour for a call across continents, to convert a webhook or log timestamp into a readable local time, and to arrange travel. Because it uses the browser’s built-in time support, it is accurate for the current and historical rules and requires no external API.
How to use the Timezone Converter
- Pick the source timezone from the From dropdown.
- Pick the destination timezone from the To dropdown.
- Choose the date in the Date field and enter the time in HH:MM format.
- The converted local time appears automatically, with the status showing whether both zones are valid.
- Use the Swap button to reverse the two zones, or Now to set the current time.
Example
From Asia/Kolkata at 09:00 on a standard (non-DST) day to UTC.
Kolkata is UTC+5:30, so the result is 03:30 UTC. Swap the zones and the same input converts UTC 09:00 into 14:30 in Kolkata.
Who is this timezone converter for?
This free timezone converter is built for anyone who needs to make a conversion quickly, but a few groups reach for it most often.
- Students and young adults: Coordinating with friends abroad teaches time zones. A timezone converter for students shows the offset and the time in another city.
- Designers and developers: Developers of scheduling apps build on UTC; a timezone converter checks the offset before writing code.
- Professionals: Product, support and sales teams plan calls across regions with a timezone converter to avoid scheduling mistakes.
- Curious users: Picking two cities in the timezone converter instantly reveals what time it is in both places.
UTC offset reference table
Standard offsets, not DST-adjusted - the converter below lets you pick a city and date and applies daylight saving automatically.
| Time zone | UTC offset |
|---|---|
| UTC | +00:00 |
| GMT (London) | +00:00 |
| EST (New York) | -05:00 |
| CET (Berlin) | +01:00 |
| IST (Mumbai) | +05:30 |
| JST (Tokyo) | +09:00 |
| AEST (Sydney) | +10:00 |
Common use cases
- Scheduling a meeting with a remote teammate or client in another country.
- Finding a call time that works across multiple time zones.
- Converting a server or log timestamp into a readable local time.
- Planning a flight, event or webinar start time for a global audience.
Pro tips
- Always pick a destination zone with its own DST rules rather than a fixed UTC offset, so the result stays correct in summer.
- Set the date correctly — daylight saving changes offset exactly at certain dates, which can shift the result by an hour.
- For a buffer on calls, convert to the far-away zone and leave an extra 30 minutes of overlap.
- Check both directions with Swap to be sure the meeting time you propose works for everyone.
FAQ
Why does the result depend on the date I pick?
Because many zones switch between standard and daylight saving time on specific dates, the real offset changes during the year, and the converter uses the correct rules for the date you choose.
What are UTC offsets?
A UTC offset is how many hours a zone is ahead of or behind Coordinated Universal Time, such as UTC+5:30 for Kolkata. Zones with DST change this offset twice a year.
What does DST mean?
DST stands for daylight saving time, when many regions move their clocks forward for part of the year, changing their UTC offset and how converted times compare.
Which time zones does it support?
It includes UTC, the major US and European zones, plus Asian and Australasian zones such as Asia/Kolkata, Asia/Tokyo, Asia/Shanghai, Australia/Sydney and more.
Can I convert the current time?
Yes. Click Now to load your current local date and time, then convert it to any zone.
Is it free and private?
Yes. The conversion runs in your browser, so no time or location data is sent anywhere.
Does it handle daylight saving automatically?
Yes. Using the date you choose, the converter applies the zone’s real rules, including DST changes.
What if a zone is invalid or unavailable?
The tool shows a status message telling you to pick a valid date and time, and it lists only supported zones in the dropdowns.
Related searches
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