From: The shock, the coping, the resilience: smartphone application use reveals Covid-19 lockdown effects on human behaviors
Lockdown city
Start date
End date
Length (days)
Control city
Shijiazhuang
Jan 5
Jan 30
25
Jinan
Harbin
Jan 15
Feb 19
35
Tianjin
Changchun
Feb 9
Guangzhou
May 30
Jun 29
30
Zhuhai
Nanjing
Jul 19
Aug 23
Hangzhou