[Yandex Cloud documentation](../../../index.md) > [Monium](../../index.md) > Logs > Concepts > Data retention period (TTL)

# Log retention period (TTL)

The log retention period (TTL) in Monium is 31 days.

The retention period is calculated starting from the `time_unix_nano` event; after the `TTL` expires, the log lines are permanently deleted.