Today is Spasovdan and a red letter day: Here are all the customs!
The Serbian Orthodox Church and its believers today celebrate the Ascension of the Lord or Spasovdan, which is also the patron saint's day of the city of Belgrade, and in many places in Serbia it is also a covenant, a holiday for the entire settlement. This holiday falls 40 days after Christ's resurrection.

TL;DR
- Spasovdan, the Ascension of the Lord, is celebrated today.
- It is the patron saint's day of Belgrade.
- In many Serbian settlements, it is a covenant and a holiday for the whole settlement.
- The holiday occurs 40 days after Christ's resurrection.