Timezone Converter
Convert time across multiple time zones instantly. Compare up to 5 cities side by side. Perfect for scheduling international meetings.
How to Use
- 1
Choose mode
Select Live clock to see current times, or Custom time to enter a specific time.
- 2
Add timezones
Each row shows a city. Change the city using the dropdown, or add up to 5 zones.
- 3
Compare times
All zones update simultaneously so you can compare times side by side.
How It Works
This tool converts a time across multiple timezones simultaneously, comparing up to 5 cities side by side — built for scheduling meetings or calls across different regions without manual UTC-offset math.
IANA timezones and automatic DST handling
The tool uses the browser's built-in Intl API with standard IANA timezone identifiers (e.g. "America/New_York", "Asia/Kolkata") — this automatically accounts for Daylight Saving Time transitions in regions that observe it, so you don't need to manually track when a country's clocks shift forward or back.
Why simple UTC-offset math often goes wrong
Manually adding or subtracting a fixed number of hours between two timezones frequently breaks around Daylight Saving Time transitions, since the offset between two specific cities can change by an hour for part of the year and not the rest — using IANA timezone names instead of fixed offsets avoids this entire class of scheduling mistakes.
Examples
Scheduling an international meeting
Setting a meeting time in New York and instantly seeing the corresponding local time in London, Dubai, and Mumbai side by side, rather than calculating each offset by hand.
Checking a time across a DST transition
Comparing a time in London and New York in March or November (when their DST transitions don't align) correctly reflects the temporary 1-hour shift in offset that a naive fixed-offset calculation would miss.
Common Use Cases
- Scheduling meetings or calls across colleagues, clients, or family in different time zones
- Checking what local time an international flight, live stream, or event corresponds to in your own timezone
- Comparing several cities' current time simultaneously for planning international coordination
Tips
- Always convert using specific city/region names rather than a fixed UTC offset if the conversion matters around a Daylight Saving Time transition period (roughly March and November in most affected regions) — offsets between two specific places can shift by an hour during those windows.
- Double-check the exact city you select for a region spanning multiple time zones (like the US or Australia) — "US time" isn't a single timezone, and picking the wrong city within a large country is a common scheduling mistake.
Frequently Asked Questions
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