ISO 8601 Converter

Summary

Convert any date or datetime string to ISO 8601 format, or parse an ISO 8601 string into a human-readable date.

How it works

1. Paste or type a date string into the input field.
2. Choose whether to convert TO ISO 8601 or FROM ISO 8601.
3. Optionally select an output timezone offset.
4. The tool parses the input and displays the result immediately.
5. Copy the converted value with one click.

Use cases

• Format API request payloads that require ISO 8601 dates.
• Debug timestamps received from REST or GraphQL APIs.
• Convert log timestamps to a readable local format.
• Generate ISO 8601 strings for calendar or scheduling applications.
• Validate that a date string is correctly formatted to the standard.
• Convert between local time and UTC for international coordination.

Frequently Asked Questions