---
title: "Round timestamps"
slug: "round-timestamps"
updated: 2026-08-26T08:52:58Z
published: 2026-09-09T08:00:00Z
canonical: "kb.solargis.com/round-timestamps"
---

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

# Round timestamps

**In this document**

You'll learn how to use the Round timestamps tool to round every timestamp in a dataset to full seconds, covering both the data and the metadata: when you need it, how rounding is applied, and how to run it. Sub-second timestamps can prevent records from aligning correctly, so rounding them helps the quality control checks and the analysis tools work as expected.

## Prerequisites

- An active Solargis Analyst account.
- Installed an Analyst desktop application.
- An available dataset in the Solargis Analyst application.

## Round timestamps

Some data loggers record timestamps with fractions of a second, for example `18:02:30.0450000`. These sub-second values can prevent records from lining up with each other, which affects the quality control checks and the analysis tools. The **Round timestamps** tool rounds every timestamp in the selected dataset to **full seconds**, in both the dataset's data and its metadata.

> [!TIP]
> **Key points to remember**:
> 
> - Standard rounding is applied: fractions below half a second round down, and half a second or above rounds up.
> - Both the **data** and the **metadata** timestamps are rounded.
> - The changes are **saved to the dataset immediately** when you run the tool. Make sure you have selected the correct dataset before you start.

> **Note**: You do not need this tool for data you are importing now - the [dataset import](/v1/docs/importing-datasets-to-analyst) can round the timestamps for you during import. Use the Round timestamps tool for datasets that are already in your project.

## Rounding the timestamps

1. Select the dataset in the main window.
2. Open the tool from the main menu via **Tools/Round timestamps**.
3. Check the **Dataset** name at the top of the dialog to confirm you are working with the dataset you intended.
4. Click **"Run and save"** to round the timestamps and write the changes to the dataset. Use **"Close"** if you want to leave the dataset unchanged.

![](https://cdn.document360.io/ae2d502f-6c0d-4865-a68e-43ad8da61149/Images/Documentation/image-6AUYHWZP.png?sv=2026-02-06&spr=https&st=2026-10-16T20%3A13%3A41Z&se=2026-10-16T21%3A13%3A41Z&sr=c&sp=r&sig=VnEaCPSlt7dktrDW1FpbEG9W4FW8JF8RrDmC5HHz690%3D)

![](https://cdn.document360.io/ae2d502f-6c0d-4865-a68e-43ad8da61149/Images/Documentation/image-DRJYT4W3.png?sv=2026-02-06&spr=https&st=2026-10-16T20%3A13%3A41Z&se=2026-10-16T21%3A13%3A41Z&sr=c&sp=r&sig=VnEaCPSlt7dktrDW1FpbEG9W4FW8JF8RrDmC5HHz690%3D)

The dialog shows an example of how the rounding is applied, so you can see the effect before you run it:

| Original timestamp | Rounded timestamp |
| --- | --- |
| 18:02:30.0450000 | 18:02:30 |
| 18:02:30.5450 | 18:02:31 |