Times

How to pass times (unix seconds or RFC 3339) and how answers carry them (t in unix seconds, ISO 8601 UTC strings).

• In requests, from, to, at and since take unix seconds (1792432800) or RFC 3339 (2026-10-19T18:00:00Z). from is inclusive, to exclusive; to defaults to now.
• In answers, series rows carry t: unix seconds (for bars, the bar's open time). Event-like fields are ISO 8601 strings in UTC (2026-10-19T18:00:00Z); some routes give both (at and t). Large trades carry t_ms (milliseconds), as the venues stamp prints.
• Everything is UTC. Daily bars open at 00:00 UTC; the monthly quota resets at 00:00 UTC on the first of the month.
• The SDKs accept datetime (Python) and Date (JavaScript) objects for time parameters and send unix seconds.