Time Zone Converter
Live world clock for multiple cities. See current times side by side, compare UTC offsets, check daylight saving status, and pick a reference moment to plan across time zones.
UTC
Thu, 9 Jul 2026
New York
US
Thu, 9 Jul 2026
London
GB
Thu, 9 Jul 2026
Tokyo
JP
Thu, 9 Jul 2026
Shanghai
CN
Thu, 9 Jul 2026
Convert Time Zones Instantly — Live World Clock
Zolkit's Time Zone Converter shows live local times for up to 8 cities at once, automatically adjusting for daylight saving time (DST). Each city card displays the UTC offset and a DST badge when summer time is active. Use the Reference Time feature to pin a specific moment — perfect for scheduling international calls, planning travel, or coordinating remote team meetings.
Multi-City World Clock
Track up to 8 cities simultaneously. Search from 100+ major cities across every continent.
Live & Reference Modes
Clocks update every second in live mode. Switch to Reference Time to check what a specific moment looks like worldwide.
DST-Aware
All offsets automatically reflect daylight saving time rules. A DST badge appears when summer time is in effect.
100% Private
All time calculations run in your browser using the Intl API. No data leaves your device.
Customizable City List
Add or remove cities at any time. Your selection is instant — no page reload required.
Mobile-Friendly
Responsive card layout works seamlessly on phones, tablets, and desktops.
How to Use the Time Zone Converter
- 1
The default view shows 5 cities — UTC, New York, London, Tokyo, and Shanghai — with live local times.
- 2
Click 'Add City' and type a city name to add more clocks (up to 8). Remove any city with the × button.
- 3
To check a specific moment, enter a date and time in the Reference Time fields. All clocks will show that moment instead of live time. Click Clear to return to live mode.
Frequently Asked Questions
How do I convert time between two cities?
Add both cities to the world clock. The cards show their current local times side by side. For a specific moment, use the Reference Time fields — enter the time in one city and read the corresponding time in the others.
What does DST mean on the time zone converter?
DST stands for Daylight Saving Time (also called summer time). When a city is currently observing DST, its clock is advanced by 1 hour relative to standard time. The DST badge appears when that rule is active, helping you avoid scheduling mistakes during transition periods.
How accurate is the UTC offset shown?
The UTC offset is computed using your browser's built-in Intl.DateTimeFormat API, which uses the IANA Time Zone Database. It is updated in real time, so it always reflects the current DST state with minute-level accuracy.
Which cities are available?
The converter includes over 100 major cities across all continents, covering every populated UTC offset from UTC−12 to UTC+14. Cities are searchable by name or country.
Can I share a specific time conversion with a colleague?
Use the Reference Time fields to set the exact moment you want to share, then copy the page URL or share the time details manually. Bookmark the page in Reference mode for quick access.
Does the converter work without an internet connection?
Yes. Once the page loads, all calculations are performed locally using the browser's Intl API. No server requests are made during time conversion.