Embassy – Consular section is closed on the following official Serbian and Belgian holidays in 2017 :
 

1. and 2. January
7. January
15. and 16. February
5. and 6. April
1. May
14. and 15. May
24. May
25. May
20. July
21. July
15. August
1. November
2. November
11. November
15. November
25. December

Holydays in Belgum: (link)