When performing Smith Machine squats you virtually have an infinite number of options as far as foot placement goes, which allows you to target your quads and glutes in different ways and to different degrees without any regard for maintaining your balance.
When entering time, the decimal point is used to represent a percentage of an hour. For example, 2.25 = 2 hours 15 minutes. 2.5 = 2 hours 30 minutes. 1.7 = 1 hour 42 minutes. If you want to designate minutes when you enter time, use a colon. 2:15 = 2 hours 15 minutes.
If using the 5-character format, the SAMPTIME field for time-of-day in 24-hour format should contain no date. Minutes in time-of-day should be less than 60 - this follows the basic format but might be written 12:75. Since there are only 60 minutes in an hour, the 75 after the colon cannot be interpreted with certainty as to the author's intent.