Time Zone Converter
Convert a date and time across multiple IANA time zones. Select target zones, hit Convert, and share results via link.
4 zones selected
About the Timezone Converter
Coordinating across timezones is a daily challenge for distributed teams, global deployments, and international API integrations. "What time is 3pm EST in IST?" is a question that comes up constantly. This tool converts times between any two timezones instantly, shows multiple zones simultaneously, and generates shareable links for scheduling coordination.
What this tool does
Multi-Zone Comparison
Add multiple timezones and see the same moment in time across all of them simultaneously — ideal for scheduling meetings across regions.
DST Awareness
Correctly handles daylight saving time transitions. Shows the UTC offset for each timezone at the selected date — not just the standard offset.
Shareable Links
Generate a URL encoding the selected timezones and time — share with teammates for meeting scheduling without ambiguity.
IANA Timezone Database
Uses the browser's built-in Intl API backed by the IANA timezone database — the same database used by operating systems and programming languages.
Pipeline
- Timestamp Converter — convert Unix timestamps to dates in any timezone.
- Cron Builder — build cron schedules that run at the right time across timezones.
Frequently asked
- Is my data sent to a server?
- No. All timezone conversions run 100% in your browser using the Intl API. No time data is transmitted anywhere.
- How do I convert a time between two timezones?
- Select the source timezone, enter the time, then select the target timezone. The converted time appears instantly. You can add multiple target timezones to compare simultaneously.
- What is UTC and why is it important?
- UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. It has no daylight saving time offset. All other timezones are defined as UTC+N or UTC-N. Storing times in UTC and converting to local time for display is the standard practice in software.
- What is the difference between a timezone and a UTC offset?
- A UTC offset (e.g. UTC+5:30) is a fixed offset from UTC. A timezone (e.g. America/New_York) is a named region that follows a specific offset schedule including daylight saving time transitions. The same timezone can have different UTC offsets at different times of year.
- How do I share a timezone conversion with someone?
- Use the Share button to generate a URL that encodes the selected timezones and time. Anyone opening the link sees the same conversion — useful for scheduling meetings across timezones.