#timestamp

Convert a timestamp or date into the block number that was live at that moment on any of 100+ blockchains, keyless. On-chain analysts, indexers and dashboards constantly need "what block was chain X at time T" to query historical state, and "which blocks cover this time window" to scan a period. This API answers both — for a single moment and for a date range (returning the start and end block plus the block count and average block time). Live, nothing stored. The timestamp-to-block layer for EVM and non-EVM chains alike. Backed by the open DeFiLlama coins API.

api.oanor.com/blocktime-api

Decode and build snowflake IDs — the 64-bit, time-sortable identifiers used by Twitter/X, Discord, Instagram and many distributed systems. Pass an ID and a platform and the service extracts the embedded creation timestamp (turn any Discord, Twitter/X or Instagram ID into the exact moment it was created) along with the machine and sequence components for that platform's epoch and bit layout. Supported platforms: twitter (X), discord, instagram, sony, and custom (supply your own epoch). The encode endpoint does the reverse: build the lower-bound snowflake for a given timestamp, so you can query "all IDs created at or after this moment" — the standard trick for time-based pagination on snowflake APIs. Everything is computed locally with exact 64-bit BigInt math and no network calls. Ideal for analytics, data forensics, API pagination and debugging distributed-ID systems. A snowflake-ID toolkit — distinct from UUID/ULID generation (uuid) and date/time math (datetime). No upstream key, no cache.

api.oanor.com/snowflake-api

A fast, fully-local date and time toolkit (UTC): parse any date string or unix timestamp into ISO, unix and components with the ISO week number, day-of-year and leap-year flag; format dates with custom tokens (YYYY-MM-DD, weekday and month names, and more); add or subtract month-aware durations; compute the difference between two dates in every unit plus a human-readable summary; and convert between unix timestamps and ISO. Every endpoint accepts input via the query string or the request body. Pure server-side compute, no third-party upstream, so responses are instant and always available. Ideal for scheduling, billing periods, reminders, analytics and any date arithmetic. (For the current time in a specific timezone, see the oanor Time API.)

api.oanor.com/datetime-api