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ISO 8601 Duration Converter
x402
ISO 8601 Duration Converter is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).
Converts ISO 8601 duration strings (e.g. P1DT2H30M) to seconds, minutes, hours, days, and plain English, or converts seconds back to an ISO duration string
Price / call$0.01
Success—
StatusUnknown
How this service works
Convert an ISO 8601 duration like P1DT2H30M or PT90M to seconds, minutes, hours, days and plain words, or turn seconds into a duration string
Output
Returns a JSON object with the conversion direction, total_seconds, total_minutes, total_hours, total_days, a components object breaking the duration into years/months/weeks/days/hours/minutes/seconds, a human-readable plain English description, the ISO 8601 string, an approximate boolean (true when years or months are involved), and optional notes about caveats.
Example use cases
Scheduling system duration parsing
“I have a calendar event with a duration field set to P1DT2H30M — can you tell me how many total hours and minutes that is, and say it in plain words?”
Video length normalization
“Our video metadata stores lengths as ISO durations like PT1H47M22S — what is that in total seconds so I can store it numerically?”
Seconds to ISO duration formatting
“I have a timer that ran for 5400 seconds and I need to store it as an ISO 8601 duration string — can you convert that for me?”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/time/iso-duration?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically parse or convert ISO 8601 duration strings into numeric time units or human-readable text, or when you need to serialize a number of seconds back into a standard ISO 8601 duration string. Prefer this over manual parsing logic or general-purpose date libraries when operating in a lightweight agent context without code execution.
Side effects
- Invalid or malformed ISO 8601 duration string returns an error
- Missing required 'duration' query parameter causes a 400-level error
- Durations involving years or months marked as approximate due to variable lengths
- Very large durations may produce null component fields where not applicable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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