I work in the US and get 4 weeks of vacation a year, but I wouldn't take it all at once in the summer. My kids are in school and schools close for 3 weeks during the normal school year - one between Christmas and New Years, one in February and one in April. The Christmas to New Years week coincides with 4 of the days my office is closed (Christmas eve and day, New years eve and day), so I can take 2 to 3 days off and be home for that stretch. That leaves about a week and a half in the summer for a summer vacation. If you're taking 4 weeks in the summer, do you not take time at all the rest of the year? Do schools in your country not have vacations?