{"slug":"duo-data-utilities-cf0f25d7","name":"Duo Data Utilities","summary":"Convert a Gregorian date to other calendar systems: Islamic (both the tabular civil calendar and the Umm al-Qura variant), Hebrew, Japanese imperial era, Republic of China, Buddhist and Persian. Also computes Easter Sunday for a year in both the Gregorian and Julian reckonings. Uses the calendar support built into the runtime, with the algorithm named in every response.","status":"live","indexable":true,"listed_since":"2026-10-25T17:51:56.373047Z","sources":[{"source":"x402_bazaar","external_id":"https://api.duoleads.com/v1/time/calendar","owner_address":"0xcd673f7e1dad254347aeab6be0defe8b9c6b3a39","seen_at":"2026-10-26T06:00:22.908144Z","removed_at":null}],"endpoints":[{"url":"https://api.duoleads.com/v1/time/calendar","host":"api.duoleads.com","protocol":"x402","state":"live","last_probe_at":"2026-10-26T04:38:03.960098Z","last_ok_at":"2026-10-26T04:38:03.960098Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"api-duoleads-com-e21aa0bc","name":"api.duoleads.com"}],"payment_options":[],"usage":{"source":"x402_bazaar","unique_payers_30d":1,"paid_calls_30d":2,"last_paid_at":"2026-10-01T20:51:25.317Z","reported_at":"2026-10-26T06:00:22.908144Z"},"notice":"Not affiliated with addrbook — claim or request removal."}