Timezone Converter

Convert a time between any two timezones — offsets and date shifts handled. Free.

Stays on your device. This tool runs in your browser — nothing you paste or open ever leaves it. Nothing uploaded, nothing to leak.

Date & time

From To

Converted

Offset difference

How to use it

Choose the “from” and “to” timezones, set a date and time, and read the converted result — with a note when it lands on the previous or next day. Defaults to your local zone so you can quickly check “what time is it there”.

Timezone Converter — TechWhack Score

9.3/10

Privacy 10/10

Conversion runs in your browser — nothing is uploaded.
Speed 10/10

Shows the converted time instantly.
Features 7/10

Converts a time between two zones using your browser’s built-in timezone database, daylight saving included.
Free 10/10

No sign-up, no daily limit, embeddable.

Verdict: Handles the UTC offset, the date change and daylight saving for you — straight from the browser’s own timezone data.

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A timezone converter turns a time in one place into the matching time somewhere else, handling the UTC offset and any date change. Pick a source and target timezone and a time, and it shows the converted time using your browser’s built-in timezone database (DST included).

Daylight saving handled

It uses the browser’s IANA timezone data, so daylight-saving transitions are applied automatically — no need to remember who’s on summer time.

FAQ

How do I convert a meeting time between two time zones?Pick the source and target zones and enter the time, and it shows the matching local time in the other zone, including any date change. That makes it easy to schedule across regions without doing the math yourself.

Does it account for daylight saving time?Yes. It uses the browser timezone database, which knows each zone DST rules, so conversions reflect whether a region is currently observing daylight time. That avoids the common one-hour error around DST changeovers.

Why is the converted time on a different day?Large offsets can push a time past midnight, so a late evening in one zone is already the next morning elsewhere. The converter shows the resulting date so a day boundary crossing is not missed.

What is UTC and how does it relate to time zones?UTC is the global reference time from which every zone is defined as an offset, such as UTC-5 or UTC+9. Converting between two zones effectively translates each to UTC and back, which the tool does for you.