POLAR S610i - Manual (Page 56)

D 54
Exercise Time within, above and below the Heart Rate Zones
Indicates the exercise time, which you have spent within (InZone), above
and below each heart rate limits during the entire exercise.
Calorie Expenditure (KCal)
You will see how many kilocalories you have expended during the exercise.
Cumulative Calorie Count (Tot. KCal)
Calculates the cumulative calories expended during several exercise sessions
starting from the previous value stored in the records file. This function
allows you to follow the calorie count as a gauge of effective exercise Ex.
during one week.
Cumulative Exercise Time Count (Tot. Time)
This function counts cumulative exercise time expended during several
exercise sessions starting from the previous value stored in the records
file. It allows you to follow the exercise time count as a gauge of amount
of exercise Ex. during one week.
Your cumulative total time is displayed in hours and minutes until 99
hours 59 minutes is reached. After this your cumulative exercise time is
displayed in hours until 9999 hours is reached.