Time Zone Converter

Convert times between any two time zones worldwide online. Free time zone converter supporting all IANA time zones. No signup required.

Features

Common Use Cases

Time zone conversion is a constant challenge for remote teams, scheduling international meetings, debugging timestamps in logs from servers in different regions, and building applications that need to display times correctly for users worldwide. This converter supports all IANA time zones and handles Daylight Saving Time transitions automatically.

How to Use

  1. Select the source time zone from the dropdown. All IANA time zones are available, including city-based names like America/New_York and Europe/London.
  2. Enter the date and time you want to convert.
  3. Select the target time zone.
  4. The converted time appears instantly, with the UTC offset for both zones shown for reference.
  5. DST is applied automatically based on the specific date, so you do not need to account for it manually.

Privacy & Security

All processing for Time Zone Converter runs entirely in your browser. Your data — whether text, files, or other content — is never transmitted to any server. DevToolHub has no backend that receives or stores your inputs. This means the tool works even offline once the page has loaded, and there is no risk of your data being intercepted or stored by a third party.

Frequently Asked Questions

What is the difference between UTC and GMT?

For most practical purposes, UTC and GMT are the same. UTC is the modern, more precise time standard used as the global reference point. This tool uses the IANA time zone database, which expresses all offsets relative to UTC.

How does this tool handle Daylight Saving Time (DST)?

DST is handled automatically by using full IANA time zone names. The browser internationalization API applies the correct UTC offset for the specific date, correctly switching between standard and daylight time.

Why do some time zones show half-hour or quarter-hour offsets?

India Standard Time is UTC+5:30, Nepal is UTC+5:45, and Australia Northern Territory is UTC+9:30. These non-standard offsets exist for historical and geographic reasons. This tool supports all IANA time zones including these unusual offsets.

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