/** Subtract a relative time from this time and return the new instant in time. */ public Abstime subtract(Reltime relTime) { return new Abstime(millis - relTime.getMillis(), timeZone); }
/** Add a relative time to this time and return the new instant in time. */ public Abstime add(Reltime relTime) { return new Abstime(millis + relTime.getMillis(), timeZone); }