Joke Collection Website - Public benefit messages - How long will it take for travel itinerary to send a short message of intersection of time and space?

How long will it take for travel itinerary to send a short message of intersection of time and space?

10 days

A spatio-temporal companion is a person who has been in the same spatio-temporal grid with a confirmed patient for 14 days.

Run-length encoding, as the record voucher of travel track, is an important means of epidemic prevention and control. At present, it is widely used in the whole country, and citizens need to show it in many places.