---
title: Updating the leap seconds file in RiPROCESS
description: RiPROCESS uses the official list of leap seconds for exporting time stamps to GPS/UTC. In RiPROCESS 1.9.3.x this list is stored in the file leap-seconds.list
---

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May 1, 2025

# Updating the leap seconds file in RiPROCESS

RiPROCESS uses the official list of leap seconds for exporting time stamps to GPS/UTC.

In RiPROCESS 1.9.3.x this list is stored in the file "leap-seconds.list" located in:

- the RiPROCESS installation folder (root directory)
- and the subfolder \>\> PLUGINS \>\> Export

Usually the list is valid until the end of June or December. So, the file has to be updated regularly.

RIEGL have released a wizard to perform this update, which can be downloaded from the Member's Area at [www.riegl.com/members-area/software-downloads/airborne-scanning/](http://www.riegl.com/members-area/software-downloads/airborne-scanning/)

You can also update it manually, using the steps detailed below.

The most recent leap-seconds.list can be downloaded from [https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list](https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list)

Please download the file or copy the content and replace it with the leap-seconds.list in:

- the RiPROCESS installation folder (root directory)
- and the subfolder \>\> PLUGINS \>\> Export

One you have done this, please restart RiPROCESS for the change to take effect.

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