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How to Use
- 1Select a source date and time using the date-time picker.
- 2Choose your source timezone from the dropdown.
- 3View all 30+ major world timezones updated instantly.
- 4Filter the results table by city name or timezone abbreviation.
- 5Click 'Use Current Time' to set the input to right now.
- 6Copy any converted time with the Copy button.
About Timezone Converter
The Timezone Converter uses the browser's built-in Intl API to instantly convert any date and time across 30+ major world timezones. No external API calls needed — all calculations happen locally and account for Daylight Saving Time automatically.
Each timezone entry shows the converted time, UTC offset, and standard abbreviation (EST, CET, JST, etc.). Filter the table by city name to quickly find the timezone you need without scrolling through the full list.
Schedule international meetings, coordinate deadlines across distributed teams, plan travel itineraries, or compare market opening hours — all from a single page. Works entirely offline after loading.
Frequently Asked Questions
How many timezones are supported?
Over 30 major timezones covering all world regions: Americas, Europe, Africa, Middle East, Asia, and Pacific. Each shows the city, UTC offset, and timezone abbreviation.
Does it handle Daylight Saving Time automatically?
Yes. The Intl API automatically adjusts for DST based on the selected date and timezone. Summer and winter offsets are calculated correctly.
Can I use this to schedule meetings across time zones?
Yes. Set your meeting time in your local timezone and instantly see what time it will be for participants in every other timezone. Use the filter to focus on specific regions.
Does this require internet access?
No. All timezone conversions use the browser's native Intl.DateTimeFormat API, which includes a built-in timezone database. No external API calls are made.
What is UTC?
UTC (Coordinated Universal Time) is the global time standard that all timezones are measured against. UTC+0 has no offset. EST is UTC-5, CET is UTC+1, JST is UTC+9, etc.