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Leap Second Compatibility

KB ID: 2143
Product: Veeam Backup & Replication
Veeam Backup for Microsoft 365
Veeam Backup for Microsoft Entra ID
Veeam Backup for Salesforce
Veeam ONE
Veeam Service Provider Console
Veeam Agent for Microsoft Windows
Veeam Agent for Linux
Veeam Backup for Nutanix AHV
Veeam Backup for AWS
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Veeam Recovery Orchestrator
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Veeam Agent for IBM AIX
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Veeam Plug-In for Proxmox VE
Published: 2016-07-20
Last Modified: 2025-07-29
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Challenge

A leap second is a one-second adjustment that is occasionally applied to Coordinated Universal Time (UTC) to keep its time of day close to mean solar time. Some software experiences problems when leap seconds are inserted (for example, if the leap second is inserted at an unexpected time).

Solution

The previous leap second insertion, which occurred on December 31, 2016, revealed no issues with any Veeam products, and it is expected that this will remain the case for future leap second insertions.

However, this may not apply to other infrastructure components or software. It is recommended to check with third-party vendors on which your business relies to ensure compatibility.

If this KB article did not resolve your issue or you need further assistance with Veeam software, please create a Veeam Support Case.

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