inline bool operator<=(Time::Format lhs, Time::Format rhs)
{ return (static_cast<int>(lhs) & static_cast<int>(rhs))==static_cast<int>(rhs); }
inline bool operator<=(Time::Format lhs, Time::Format rhs)
{ return (static_cast<int>(lhs) & static_cast<int>(rhs))==static_cast<int>(rhs); }