Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) SNS during daytime, (B) web surfing, (C) SNS at night, (D) mobile shopping, (E) entertainment, and (F) gaming at night. The x-axis is the time slot (10 minutes), whereas the y-axis represents the involvement in time slots.
