[CQ-Contest] Operating time calculation

[David Hachadorian]

I found this little note in my log checking report for CW SS:
----------------------- 

TIME ON CALCULATION
2100-0849 =  710
1313-1605 =  173
1635-0154 =  559
           ------
  On time = 1443 minutes (max of 1440).

Since you operated beyond the limit of 24 hours, you will have
QSOs removed from the end of your log. See time expired entry in
the score summary.

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I always figured op time = (time off) minus (time on).

It should be op time = (time off) minus (time on) plus 1 minute?

I've been figuring it wrong for 45 years? Oh, well, at least I've
been consistent!


Dave Hachadorian, K6LL
Yuma, AZ