About this tool
Convert dates between timezones. Saves time when logs, design specs, or infra configs use a different format than your code expects.
Enter an ISO date/time (for example 2024-06-01T15:00:00Z). Choose the target IANA timezone such as America/New_York or Europe/Berlin. Example — UTC instant in US Eastern: try `2024-01-15T12:00:00Z → America/New_York` and expect something like `America/New_York: Monday, January 15, 2024 at 7:00:00 AM EST`.
Requires a valid IANA timezone name; abbreviations like EST alone are not accepted. See also: Unix Timestamp Converter, and Cron Expression Parser. Runs in your browser — nothing you paste gets uploaded.
How to use
- Enter an ISO date/time (for example 2024-06-01T15:00:00Z).
- Choose the target IANA timezone such as America/New_York or Europe/Berlin.
- Review the formatted result for that zone’s wall-clock time.
- Re-run with another timezone when comparing release windows or on-call schedules.
Example
UTC instant in US Eastern
Input
2024-01-15T12:00:00Z → America/New_York
Output
America/New_York: Monday, January 15, 2024 at 7:00:00 AM EST
Limitations
- Requires a valid IANA timezone name; abbreviations like EST alone are not accepted.
- Formatting uses the browser’s Intl API — label styles can differ slightly across engines.
- Does not batch-convert a list of cities in one pass; convert one zone at a time.
Related guides
1Related tools
2Frequently asked questions
What does the Timezone Converter do?
Convert dates between timezones. Runs in your browser — no install, no account.
How do I use the Timezone Converter?
Enter an ISO date/time (for example 2024-06-01T15:00:00Z). Choose the target IANA timezone such as America/New_York or Europe/Berlin. Review the formatted result for that zone’s wall-clock time. Re-run with another timezone when comparing release windows or on-call schedules.
Is the Timezone Converter free?
Yes. No signup, no usage limits, no paywall.
Does the Timezone Converter upload my data?
No. Processing happens locally in JavaScript. Your input is not uploaded, stored, or logged.
What are the limitations of the Timezone Converter?
Requires a valid IANA timezone name; abbreviations like EST alone are not accepted. Formatting uses the browser’s Intl API — label styles can differ slightly across engines. Does not batch-convert a list of cities in one pass; convert one zone at a time.