Date & Time
ISO 8601 Converter
Parse and create ISO 8601 date/time values.
Parsed as an absolute instant.
UTC
Aug 20, 2026, 10:00 AM UTC
Local time
Aug 20, 2026, 10:00 AM UTC
Unix seconds
1787220000
Local UTC offset
UTC+0
About This Tool
Convert ISO 8601 timestamps into practical UTC, local, and Unix representations, or build a normalized ISO value from local date and time input.
How To Use It
- Paste an ISO 8601 value or build one from local date/time.
- Review UTC, local, and Unix outputs.
- Copy the normalized ISO string.
Examples
Check an API timestamp
Paste a value like 2026-08-20T14:30:00Z to see the equivalent UTC, local time, and Unix timestamp.
Create a timestamp for testing
Build a valid ISO value from date and time fields before adding it to a request, fixture, or scheduled job.
Useful Notes
Offset handling
ISO strings with Z are treated as UTC. Strings with an explicit offset are converted from that offset into normalized outputs.
Validation
Invalid or incomplete date strings are rejected so copied output is based on a parseable timestamp.
FAQ
What does the Z mean in an ISO timestamp?
Z means the timestamp is in UTC, also called Zulu time.
Can ISO 8601 include a timezone offset?
Yes. Values can end with Z for UTC or an explicit offset such as +05:30, and both forms represent an exact moment in time.
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