Miroslav Lichvar

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Five different ways to handle leap seconds with NTP

Miroslav Lichvar

A leap second is an adjustment that is once in a while applied to the Coordinated Universal Time (UTC) to keep it close to the mean solar time. The concept is similar to that of leap day, but instead of adding a 29th day to February to keep the calendar synchronized with Earth's orbit around the Sun, an extra second 23:59:60 is added to the last day of June or December to keep the time of the day synchronized with...