For that very reason, for start/end policy times, we store them aligned to the second - no fractional seconds allowed. There'd be no legal basis for that anyway

For that very reason, for start/end policy times, we store them aligned to the second - no fractional seconds allowed. There'd be no legal basis for that anyway. Obviously for actual timestamps - e.g. created at/updated at times - we do store a point-in-time with fractional seconds.