Time Zone Calculator Online – Convert Times & Plan Meetings

The Time Zone Calculator converts a time from one location into the equivalent local times across multiple time zones simultaneously. Whether you are scheduling a meeting with international colleagues, coordinating a call with a client in another country, or simply checking what time it is somewhere else right now, this tool gives you an instant, accurate conversion. Daylight saving time adjustments are applied automatically where relevant.

How to Use the Time Zone Calculator

Follow these steps to convert a time across time zones:

1. Set your reference location — Select the time zone you are converting from, such as UTC, New York, London, Tokyo, or any of the other available locations.
2. Enter your date and time — Choose the date and enter the time you want to convert.
3. Select a comparison time zone — Choose the first location you want to convert your time into from the “Compare With” dropdown.
4. Add more time zones (optional) — Click “Add Another Time Zone” to include additional locations in the same conversion. This is useful when coordinating across multiple regions at once.
5. Convert — Click “Convert Time” to generate your results.
6. Review your results — The converted times for each selected location are displayed together, along with a time difference visualisation so you can see the offset between each zone at a glance.
7. Daylight saving time — Adjustments for daylight saving time are applied automatically based on the date entered, so your results are accurate year-round.

Why Use This Calculator?

Multi-zone comparison in one view — Add as many time zones as you need and see all converted times together. No need to convert each location separately or cross-reference multiple tools.

Automatic daylight saving time — The calculator accounts for DST automatically based on the date you enter. Summer and winter times are handled correctly for all supported locations without any manual adjustment.

Time difference visualisation — A visual offset display makes it easy to understand the gap between your reference location and each comparison zone, helping you quickly identify overlapping hours for scheduling purposes.

Supports major world cities — Covers widely used time zones including UTC, New York, Los Angeles, Chicago, London, Paris, Tokyo, Shanghai, New Delhi, and Sydney.

Practical for global teams — Ideal for remote workers, freelancers, international businesses, travellers, and anyone who regularly needs to coordinate across different time zones.

Free and accessible — Works instantly in any browser on any device with no account, download, or payment required.