> For the complete documentation index, see [llms.txt](https://docs.senmo.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.senmo.io/topics/timestamps.md).

# Timestamps

Each record returned by our API includes timestamp fields for reference: `created_at` and `updated_at`. The `created_at` timestamp indicates when the record was initially created, while the `updated_at` timestamp shows the date and time of the most recent update to the record.

These timestamps follow the ISO 8601 standard. For instance, November 9, 2019, at 00:11:07 UTC would be represented as `2019-11-09T00:11:07Z`