Dayun Express made up the reason for the delay in delivery.

There may be several reasons for the delay in delivery of Dayun Express:

1. Weather reason: Bad weather conditions (such as rainstorm and snowstorm) may cause road traffic congestion and delay delivery.

2. Traffic reasons: Traffic accidents, road construction and poor traffic management may also cause the delivery delay of Dayun Express.

3. Reasons for holidays: During holidays, the express delivery volume usually increases sharply, and the express delivery company may face the shortage of delivery personnel, resulting in delivery delay.

4. Remote destination: If the express destination is remote or inconvenient, the delivery time may be extended.

In the face of delivery delay, Dayun Express will try its best to allocate resources, optimize operations, strengthen delivery management, and improve delivery efficiency and punctuality. However, due to the complexity and diversity of express delivery business, the reasons for express delivery delay in each specific case may be different. The above are just some common reasons, and the specific situation needs to be analyzed according to specific facts. If Dayun Express does have a delay in delivery, I suggest you contact Dayun Express customer service to find out the specific situation and seek a solution.