NewSyncer creates new Syncer with default configuration.

AdjustTimeLimit is a maximum time drift to compensate via adjtimex().

EpochLimit is a minimum time difference to signal that change as epoch change.

ExpectedAccuracy is the expected time sync accuracy, used to adjust poll interval.

MaxAllowablePoll is the maximum allowed interval for querying a time server.

MinAllowablePoll is the minimum time allowed for a client to query a time server.

RetryPoll is the interval between retries if the error is not Kiss-o-Death.

Global instance of RTC clock because `rtc` doesn't support closing.

Global instance of RTC clock because `rtc` doesn't support closing.

Measurement is a struct containing correction data based on a time request.

Syncer performs time sync via NTP on schedule.

AdjustTimeFunc provides a function to adjust time.

CurrentTimeFunc provides a function which returns current time.

QueryFunc provides a function which performs NTP query.

SetTimeFunc provides a function to set system time.