Build an ISO 8601 duration
datetime.openverbs.com
Parse an ISO 8601 duration such as 'P1Y2M10DT2H30M' into its components. Returns a normalized ISO string and totalSeconds — but totalSeconds is null when the duration contains years or months, because those are calendar-variable (use /v1/add or /v1/between for exact date math).
- Category
- Service
- Networks
- Base
- Starting price
- $0.002
- Paid calls, 30 days
- 237
Paid endpoints
13 endpoints, sorted by usage. Prices are per request.
| Endpoint | Price | Network | Facilitator | Calls / 30d |
|---|---|---|---|---|
POST/v1/add Add an ISO 8601 duration to a start date or date-time and return the resulting UTC instant. Calendar-aware: months and years honor month lengths (e.g. Jan 31 + P1M clamps to the last day of February). A negative-signed duration subtracts. | $0.002 | Base | Coinbase CDP | 27 |
POST/v1/between Compute the calendar breakdown (years, months, days, hours, minutes, seconds) between two ISO 8601 dates/date-times, plus exact totalSeconds. If end precedes start the result is flagged negative rather than erroring. | $0.002 | Base | Coinbase CDP | 27 |
POST/v1/business-days Add/subtract business days to a date, or count business days between two dates — skipping weekends and optional holidays. | $0.002 | Base | Coinbase CDP | 27 |
POST/v1/convert Convert an ISO datetime into another timezone, with offset, weekday and Unix time. | $0.002 | Base | Coinbase CDP | 27 |
POST/v1/format Assemble an ISO 8601 duration string from individual components (years, months, weeks, days, hours, minutes, seconds) and an optional sign. All components must be non-negative and at least one must be non-zero. | $0.002 | Base | Coinbase CDP | 27 |
POST/v1/humanize Render an ISO 8601 duration as an English phrase, e.g. 'P1Y2M' → '1 year and 2 months'. Components are shown in descending order with correct pluralization. | $0.002 | Base | Coinbase CDP | 27 |
POST/v1/parse Parse an ISO 8601 duration such as 'P1Y2M10DT2H30M' into its components. Returns a normalized ISO string and totalSeconds — but totalSeconds is null when the duration contains years or months, because those are calendar-variable (use /v1/add or /v1/between for exact date math). | $0.002 | Base | Coinbase CDP | 27 |
POST/v1/day-of-year Return the ordinal day of the year (1..366), the number of days in that year and whether it is a leap year. | $0.004 | Base | Coinbase CDP | 14 |
POST/v1/easter Compute the date of Western (Gregorian) Easter Sunday for a year in 1583..9999 using the Anonymous Gregorian computus. | $0.004 | Base | Coinbase CDP | 14 |
POST/v1/iso-week Return the ISO-8601 week-numbering year, week number (1..53) and weekday (1=Monday..7=Sunday) for a Gregorian date. The ISO year can differ from the calendar year around New Year. | $0.004 | Base | Coinbase CDP | 14 |
POST/v1/from-jdn Convert a Julian Day Number back to a proleptic-Gregorian date, with the ISO weekday (1=Monday..7=Sunday) and its name. | $0.004 | Base | Coinbase CDP | 2 |
POST/v1/to-jdn Convert a proleptic-Gregorian calendar date to its Julian Day Number (the integer count of days since JDN 0, 1 January 4713 BC in the proleptic Julian calendar). | $0.004 | Base | Coinbase CDP | 2 |
POST/v1/weekday Return the ISO weekday (1=Monday..7=Sunday) and its name for a Gregorian date. | $0.004 | Base | Coinbase CDP | 2 |
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