Network time protocol (NTP)

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Open Diagnostics & Maintenance > System Settings > Network time protocol (NTP) to configure clock synchronisation.

Field	Description
Local NTP server	Enables or disables the router's local NTP server. This does not disable the router's NTP client.
NTP servers	Lists the NTP servers used to synchronise the router clock. The screenshot shows 0.openwrt.pool.ntp.org through 3.openwrt.pool.ntp.org.
NTP pools	Lists any configured NTP pool sources.
Use IPv4 for NTP server name resolution	When enabled, limits NTP hostname resolution to IPv4.
Minimum poll time	Minimum interval between NTP polls.
Maximum poll time	Maximum interval between NTP polls.

If every NTP server is removed, the NTP client is disabled. Keep at least one reachable, approved time source. Accurate time is required for logs, certificates, and fault investigation.