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Lordevo Date Calculator
x402
Lordevo Date Calculator is a paid API for AI agents from shop.lordevo.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Performs offline date arithmetic: adds/subtracts durations (ISO 8601 or plain text, including business days), and computes the difference between two dates in multiple units.
Price / call$0.002
Success—
StatusUnknown
How this service works
Date calculator: add durations, business days, difference between dates: Date arithmetic offline: adds or subtracts durations (ISO 8601 or plain text, including business days with your weekend and holiday list), and gives the difference to a second date in calendar days, weeks, years/months/days and
Output
A JSON object containing: the resolved start date and its metadata (weekday, ISO week, quarter, day of year, leap year flag, business day flag, unix seconds, UTC datetime), the computed result date (after adding/subtracting durations) with the same metadata, and—if an 'until' date is provided—the difference between the start and second date expressed in calendar days, weeks, years/months/days, and business days. May also include notes about edge cases.
Example use cases
Project deadline from start date
“Our project kicks off on 2025-04-01 — what is the delivery date if we have 60 business days to complete it, treating Saturday and Sunday as the weekend and skipping US holidays 2025-05-26, 2025-07-04, and 2025-09-01?”
Days remaining until contract expiry
“How many calendar days and business days are left between today and 2026-01-15? Use sat,sun as the weekend.”
Payroll date calculation with holidays
“Our payroll runs every 14 calendar days starting from 2025-03-15 — what is the next 5 pay dates if I add 14 days each time, and can you also tell me what day of the week each one falls on?”
Technical details
Endpoint
GEThttps://shop.lordevo.com/api/quick/date-calc?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need offline, deterministic date arithmetic with support for business-day calculations, custom weekends, and holiday exclusions. It is especially useful when you need results in multiple formats simultaneously (days, weeks, years/months/days) or when you need rich date metadata (weekday, quarter, ISO week) alongside the calculation. Prefer it over general-purpose date libraries when operating within an agent pipeline that requires an API call and cannot execute local code.
Side effects
- Missing required 'date' parameter returns an error
- Unrecognized duration format in 'add' or 'subtract' causes a parse error
- Invalid IANA timezone string causes a timezone resolution error
- 'holidays' string exceeding 5000 characters or 400 dates may be rejected
- Invalid date string format returns a parsing failure
- Ambiguous duration abbreviations (e.g. 'm' for minutes vs months) may be misinterpreted
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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