public static LocalTime timeOfMicroOfDay(long microOfDay){
        return LocalTime.ofNanoOfDay(microOfDay*1000L);
    }
Obtains an instance of LocalTime from the number of microseconds past midnight.
This returns a LocalTime with the specified microsecond-of-day.
@param microOfDay the nano of day,
@return the local time, not null
src/main/java/org/replicadb/time/Conversions.java