How does time sensitive Snapchat notifications work?

Everyone has used the DND mode whether they are using an Android or iOS device to prioritize who can contact them and which application can send them notifications. But sometimes you have to look at some selective notifications from one of your closest connections on Snapchat. This is where Snapchat's time sensitive notifications role comes into play. If you don’t know what does time sensitive mean on snapchat then let me tell you that the time sensitive notifications will send you alerts which you can see through your lock screen. These notifications remain for an hour so that you can take a look at them.