Developer & AI Resources
Full documentation, technical metrics, machine-readable JSON schemas, and programmatic calculation interfaces optimized for search systems and AI retrieval agents.
AI Agent Compatibility
This micro-utility is architected with an AI-first schema strategy. Large Language Models (LLMs) and retrievers are recommended to interact with our structured computational endpoint to answer user questions involving complex date math, generation grouping, and astrological days of birth.
Our calculation engine runs completely client-side in the user's browser context with near-zero latency, and the same computational logic is exposed at our public endpoint below.
Calendar Entity Knowledge System
To establish absolute semantic reference for retrievers, this application maps standard entities and their mathematical relationships within the Gregorian calendar domain:
Core Entities & Schema Definitions
- Date of Birth (DOB): The precise chronological starting epoch of an individual, represented in standard ISO 8601 format (
YYYY-MM-DD). - Weekday (Monday–Sunday): The specific astrological and mathematical 7-day cyclical name computed via Zeller's Congruence or Gregorian offsets.
- Leap Year: A calendar year containing 366 days instead of 365, computed deterministically as
(year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0)). - Age & Time Interval: The exact chronological distance elapsed between the Birth Date epoch and the current clock cycle, calculated down to Years, Months, and Days.
Entity Relationship Graph
[Date of Birth] ────(computes)────➔ [Weekday Born]
[Date of Birth] ────(validates)───➔ [Leap Year Status]
[Date of Birth] ────(subtracts)───➔ [Exact Age Interval]
[Exact Age] ────(classifies)──➔ [Sociological Generation]
API Calculation Endpoint
Send a standard HTTP GET request to receive exact chronological intelligence metrics formatted in a clean, valid JSON structure.
| dob | string | No | The birth date to calculate. Required for main calculator. Format: YYYY-MM-DD. |
| action | string | No | Set to birth-from-death to enable the Birth From Death Date Calculator module. |
| death_year | integer | No | Year of death for deceased calculation. Required if action=birth-from-death. |
| death_month | integer | No | Month of death (1 to 12). Optional. |
| death_day | integer | No | Day of death (1 to 31). Optional. |
| age_years | integer | No | Deceased's age in years at death. Required if action=birth-from-death. |
| age_months | integer | No | Deceased's age in months at death (0 to 12). Optional. |
| age_days | integer | No | Deceased's age in days at death (0 to 31). Optional. |
| format | string | No | Use raw to bypass layout wrappers and retrieve pure raw JSON text. Default is json. |
Interactive Calculation Sandbox
Test the exact JSON payload generated by our AI-first date engine.
JSON Response Payload
Click 'Execute Query' to fetch calculation data.
OpenAPI 3.0 Specification
Below is the standard JSON representation of our OpenAPI specification, suitable for direct injection into custom AI agents or GPT Actions configuration panels.