if t == nil && u == nil {
		return true
	}
	if t != nil && u != nil {
		return t.Time.Equal(u.Time)
	}
	return false
}

// UnixMicro returns the local time corresponding to the given Unix time
// by wrapping time.Unix.
func UnixMicro(sec int64, nsec int64) MicroTime {
	return MicroTime{time.Unix(sec, nsec)}
}

// UnmarshalJSON implements the json.Unmarshaller interface.