Time Zone Converter
Convert a date and time to any timezone in the world. Add multiple timezones side by side — perfect for scheduling across continents.
Quick add timezone:
| Timezone | Time | |
|---|---|---|
| UTC | 07:45:00 | |
| America/New_York | 03:45:00 | |
| Europe/London | 08:45:00 |
- UTC
- 07:45:00 (GMT+00:00)
- New York
- 03:45:00 (GMT-04:00)
- London
- 08:45:00 (GMT+01:00)
How to use Time Zone Converter
The time zone converter translates a specific date and time across multiple world time zones simultaneously, showing local times for major global cities and regions. It supports Daylight Saving Time adjustments automatically, making it accurate year-round for scheduling international meetings, flights and calls.
- Enter a reference date and time.
- Select the source time zone.
- View the converted times for all listed time zones.
- Search for any IANA time zone by city or region name.
Your data never leaves your device — 100% private processing.
UTC offsets and Daylight Saving Time
Every time zone is defined as an offset from UTC (Coordinated Universal Time). UTC+0 is GMT; New York is UTC−5 in winter (EST) and UTC−4 in summer (EDT). DST transitions shift clocks forward by 1 hour in spring and back in autumn, affecting about 70 countries. The exact transition date varies by country and year; this tool uses IANA time zone data for accurate DST handling.
Glossary
- UTC
- Coordinated Universal Time — the world's primary time standard with no DST adjustment.
- DST
- Daylight Saving Time — a seasonal clock adjustment used in many countries.
- IANA time zone
- A time zone identifier like "America/New_York" from the official time zone database.
Related reading
Frequently Asked Questions
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Why use Time Zone Converter?
- Handles timezone conversions and DST automatically
- Supports date arithmetic across years and leap years
- ISO 8601 and human-readable output formats
- Works for historical and future dates with full accuracy
Common use cases
- Calculate how many days until a project deadline
- Find the day of the week for a date in the past
- Convert meeting times across different time zones
- Calculate age from a date of birth
- Add or subtract business days for contract terms
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