Researchers have argued over the best time to read for ages, whether morning or evening and also how long. They finally came to the compromise that it's different for everybody and should not be too long.
The president have however brought a new dimension that it's not a best time of the day, but a best time of the year. We are being told that he took his vacation/leave because this is the best time of the year to read. We therefore feel that most examination bodies should take note and change the date for exams so student will be able to read at the best time for these examinations.