About Timezone converter
Use the timezone converter to display a known instant in another city or region. You can convert UTC to local time by entering an ISO timestamp ending in Z and an IANA name such as Europe/London. Regional names allow the browser to apply the offset for that date.
How to convert a date between timezones
- Enter an ISO date-time containing Z or an explicit offset, such as 2026-01-15T12:00:00Z.
- Enter the target IANA timezone, for example America/New_York.
- Select Process and read the target local date and time alongside the unchanged ISO instant.
A practical example
- Input
2026-01-15T12:00:00Z; Target timezone: America/New_York.
- Result
The same instant displayed as 7:00 AM in New York on January 15, 2026.
The display uses the browser's English date formatting. An IANA regional timezone is preferable to an ambiguous abbreviation such as CST.
Supported input and limitations
- Input must specify an offset. Ambiguous local times without Z or an offset are rejected.
- Timezone rules come from the browser and operating system. This is not a recurring-meeting scheduler or a future legislative-rule guarantee.
Processing happens on your device. Read about local processing and optional workspace recovery.
Frequently asked questions
Does the timezone converter handle daylight saving time?
Regional IANA names use the browser's rules for the chosen date, including daylight-saving offsets where applicable. Keep the browser and operating system current.
Why is my local date-time rejected?
An input such as 2026-01-15T12:00 has no offset and can be ambiguous. Include Z for UTC or an explicit offset such as -05:00.