public static bool IsTimeBetween(TimeSpan input, TimeSpan start, TimeSpan end, bool fromInclusice, bool toInclusive) 
    { 
      //http://stackoverflow.com/questions/592248/how-can-i-check-if-the-current-time-is-between-in-a-time-frame 
      // see if start comes before end 
      if (end < start) 
      { 
        return 
          ((toInclusive && (input <= end)) || (!toInclusive && (input < end))) 
          || 
          ((fromInclusice && (input >= start)) || (!fromInclusice && (input > start))); 
      } 
      else 
      { 
        return 
          ((fromInclusice && (input >= start)) || (!fromInclusice && (input > start))) 
          && 
          ((toInclusive && (input <= end)) || (!toInclusive && (input < end))); 
      } 
 
 
    } 

public IMongoQuery GetMongoQueryIntersectWith<TCollection>( 
      Expression<Func<TCollection, DateTime>> fromExp,  
      Expression<Func<TCollection, DateTime>> toExp) 
    { 
      var rangeTo = Query.And(Query<TCollection>.GTE(toExp, To), Query<TCollection>.LTE(fromExp, To)); 
      var rangeFrom = Query.And(Query<TCollection>.GTE(toExp, From), Query<TCollection>.LTE(fromExp, From)); 
 
      var rangeQuery = Query.Or(rangeTo, rangeFrom,  
        Query.And(Query<TCollection>.GTE(fromExp, From),Query<TCollection>.LTE(toExp, To))); 
      return rangeQuery; 
    }