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Timezone difference

Select two timezones to compare their current UTC offset and local time.

How Timezone difference works

Timezone difference shows the current UTC-offset gap between two IANA timezones, how many hours apart, say, London and Sydney are right now. It is the quick answer to "what's the time difference between…" without converting any particular meeting time.

When you actually need to translate a specific date and time from one zone to another (and have DST handled for that date), use the Timezone converter instead. This tool stays focused on the offset gap, which can change through the year as each zone starts or ends daylight saving on its own dates.

Frequently asked questions

When should I use this rather than the Timezone converter?

Use Timezone difference for a fast "they are N hours ahead" answer. Switch to the Timezone converter when you have a concrete date and time to translate, since DST can change the gap depending on the date.

Why can the difference change during the year?

Because the two zones may start or end daylight saving on different dates, the gap between them is not always constant. The tool reflects the current offsets for an at-a-glance figure.

Is the date I enter sent anywhere?

No. Every value is computed in your browser, on your device. The date you enter never leaves your machine and nothing is stored between visits.

Does it work offline?

Yes, once the page has loaded. Because the processing happens on your device, you can disconnect from the network and the tool keeps working. This is the clearest proof that your data never leaves your machine.

Is it free? Do I need an account?

It is completely free and requires no sign-up. There are no watermarks, no daily limits and no tracking cookies needed to use the tool.

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