> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cryptoquant.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Time Convention

> How the window, from, and to parameters control data aggregation intervals.

For all metrics, the `window` parameter is used to specify the time intervals for which the
data is aggregated. Windows are provided in `window=min`, `window=hour`, `window=day` and `window=block`,
and each metric supports different windows. For on-chain data, the smallest period available
is block. Daily units are provided for added versatility.

We use two parameters `from` and `to` to specify the start and end time for which data will
be gathered. Generally, it can be formatted as `YYYYMMDDTHHMMSS` (e.g. `from=20191003T220000`)
for all windows, and additional formats are supported for each window type.

| Window  | Description                                                                                                        | `from`, `to` parameter format                                                                                                                          |
| ------- | ------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `block` | Data representing a specific block.                                                                                | Datetime (`YYYYMMDDTHHMMSS`) or block height (e.g. `550000`). If datetime is used, data for blocks corresponding to that time period will be returned. |
| `min`   | Currently supported for market data only. For time 18:12:00, it represents data from 18:12:00 UTC to 18:12:59 UTC. | Datetime (`YYYYMMDDTHHMMSS`).                                                                                                                          |
| `hour`  | Data calculated for all blocks produced in an hour. An hourly data is from 12:00:00 UTC to 12:59:59 UTC.           | Datetime (`YYYYMMDDTHHMMSS`).                                                                                                                          |
| `day`   | Data calculated for all blocks produced in a day. Each day begins at 00:00:00 UTC and ends at 23:59:59 UTC.        | Datetime (`YYYYMMDDTHHMMSS`) or date (`YYYYMMDD`).                                                                                                     |

<Note>
  End-of-day data of exchange/miner/inter-entity flow will be ready to serve from UTC 00:00 AM
  and may take up to an hour. Since block confirmation takes time due to the nature of the
  blockchain, blocks created before 00:00 AM are reflected in the calculation sequentially.
  The block confirmation time varies, so the safe time to query the endpoint for a full day
  would be an hour after the day (i.e., UTC 1:00 AM). Top 10 data will return `null` until
  block confirmation is complete.
</Note>