Not being able to finish a daily mission in Valorant because of a timer that ended earlier than expected was frustrating to say the least. All of this is now resolved. Last night, Riot Games announced through a tweet that the mission timers will now be fixed.
Each day, the daily missions will be updated between 4:00 and 8:00 am. This schedule is the same for all regions of the world which will allow the game to be updated at different times depending on the servers.
It's a relief for some players who sometimes found themselves with curious timers, not allowing them to finalize their goals in time. No wonder the editor found it useful to quickly fix the issue.
These daily missions bring a lot of experience points. Players can use them to get money in-game and unlock cosmetics. Since this is an internal patch to Riot Games servers, you won't have to download any updates on your side.