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Resource timestamps
Most resources carry two standard timestamps:Ordering
List endpoints always return results newest-first, ordered bycreatedAt descending. Ordering is fixed, there is no sortBy parameter. To narrow a list, filter it (see below) and page through with the cursor parameters described in the API reference.
Date-range filters
List endpoints support filtering by creation time using bracket-suffixed query parameters, which accept RFC 3339 timestamps:Timestamps in webhooks
Every webhook delivery includes anoccurredAt timestamp marking when the change occurred, in the same RFC 3339 / UTC format.
Always send and interpret timestamps in UTC. If your system stores local times, convert to UTC before filtering, otherwise range boundaries will be off by your timezone offset.