Convert Timestamp to ISO 8601
ISO 8601 (e.g., 2024-01-15T09:30:00Z) is the international standard for date and time representation. It is the required format for many APIs, JSON data, and international systems. This tool converts any Unix timestamp to a properly formatted ISO 8601 string.
Open Timestamp Converter →How to Convert Timestamp to ISO 8601
- Open the Timestamp Converter on ToolPrime
- Enter a Unix timestamp (seconds or milliseconds)
- View the ISO 8601 formatted output
- Copy the string with or without timezone offset
Common Use Cases
- Format timestamps for ISO 8601-compliant API responses
- Convert database epoch values to ISO strings for JSON output
- Generate standardized datetime strings for log aggregation
- Create ISO dates for XML and SOAP service integrations
Frequently Asked Questions
What does the T and Z mean in ISO 8601?▾
T separates the date and time components. Z indicates UTC (Zulu time). A timezone offset like +05:30 can replace Z for local times.
Does it include milliseconds in the output?▾
Optionally, yes. You can choose between second precision (2024-01-15T09:30:00Z) and millisecond precision (2024-01-15T09:30:00.000Z).