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Calendar Systems – Gregorian to Islamic Tabular Civil Calendar Converter
x402
Calendar Systems – Gregorian to Islamic Tabular Civil Calendar Converter is a paid API for AI agents from calendar-systems.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).
Converts a Gregorian date to the Islamic tabular civil calendar date (or vice versa), returning month name, leap year status, observances, and a disclaimer that this is a calculated approximation, not based on moon sighting.
Price / call$0.02
Success—
StatusUnknown
How this service works
Convert a Gregorian date to the Islamic tabular civil calendar (or back); a calculated approximation, not moon sighting.
Output
Returns a structured object containing the corresponding Islamic calendar date (day, month number, month name, year), whether it is a leap year, the length of the month and year in days, any Islamic observances on that date, the source Gregorian date components, the weekday, and a disclaimer noting the result is a calculated tabular approximation rather than a moon-sighting-based determination.
Example use cases
Islamic holiday planning for an event
“I'm planning an event and need to know what Islamic date March 20, 2026 falls on — give me the Hijri day, month name, and any Islamic observances around that date.”
Convert Islamic date to Gregorian
“Can you convert the Islamic date 15 Ramadan 1446 to its Gregorian equivalent? Use the from=islamic direction.”
Birthday in the Islamic calendar
“My friend was born on July 4, 1990 — what was their birth date in the Islamic tabular civil calendar, and what Islamic month were they born in?”
Technical details
Endpoint
GEThttps://calendar-systems.x402tookit.com/islamic-calendar?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a deterministic, algorithmically-calculated conversion between Gregorian and Islamic calendar dates. Ideal for scheduling, date display, religious planning applications, or any context needing Hijri dates without relying on regional moon-sighting announcements. Prefer over manual calculation or moon-phase-based services when a fixed, reproducible tabular result is needed.
Side effects
- Missing required 'date' query parameter returns an error
- Invalid date format (not YYYY-MM-DD) causes a parse error
- Date out of supported range may return unsupported flag
- Invalid 'from' enum value (not 'gregorian' or 'islamic') causes validation failure
- Islamic date that does not exist in the tabular calendar may return an error or degraded result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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