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

# Units and Prefixes

> Explore the use of units and prefixes used with the Celestra APIs.

## Timekeeping

<Info>
  Timestamps adhere to the [RFC3339](https://www.rfc-editor.org/rfc/rfc3339.txt)
  standard for date and time representation.
</Info>

<Info>
  All events are recorded in Coordinated Universal Time (UTC), commonly referred
  to as Zulu time.
</Info>

Examples of timestamp formats include:

* Timestamp with nanoseconds: `1985-04-12T23:20:50.089591155Z`
* Timestamp with seconds precision: `1985-04-12T23:20:50Z`

In the case of geographically bound events, alongside the UTC timestamp, we provide a timestamp with timezone information. This approach guarantees the precise recording of events and their potential impact on human lives, accounting for timekeeping nuances, even in scenarios where future changes in timezones may occur.

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