If the VOD is watched with mobile app out of progress check period,

since the end time is not checked in the mobile app, the student's start time and end time is recorded the same.

When learning on a PC, both the start time and end time of learning are recorded.

EX.

• Progress check period: 2022-03-24 00:00 ~ 2022-03-30 23:59
• Student's learning date and time: 2022-03-31