can leap seconds be handled as overlapping data how big leap seconds when is a leap second in a time series how do you handle leap seconds how do you handle leap seconds time sequence leap seconds when to allow leap seconds how long would time series be with leap time how do leap seconds work in data how long is a leap second how many leap seconds are in a time series? how to handle leaps in time series how many seconds to leap seconds how to handle leap second data can leap seconds be a problem how to handle leap second data what is leap seconds how many overlapping time series are there when can leap seconds be used time series how do i handle leap seconds?