I agree there are issues with MFM calculations. I have 1:59 or 2:00 respectively nearly every time I charge but something doesn't look right about it.
My typical usage is 55 miles round trip and my usage in MFM shows 6 & 7 KWh per trip (less going out and more coming back). That roughly matches 2 hours of charge time so I haven't thought too much about the precision of the 2 hour numbers, other than they look strange to my trained eye. I've also confirmed via SoCal Edison that I'm pulling the 6.6 kW only during the Midnight-2AM hourly time slots if I start charging exactly at Midnight. So Edison matches MFM pretty well for my daily usage, but not always when I change it up on the weekend.
For example, last night it started charging at 12:02 and MFM said it would take till 1:27 am to finish. The fully charged email from MFM came through at 1:18. However, MFM log reports that it started at 12:02 and ended at 12:02 with "less than a minute" charge time, even though it's now fully charged! If I do the math from the email time stamps, 1.25 hours * 6.6 kW it should have replaced about 8.25 kWh (assume slightly less because the end charge scenario will be lower than 6.6 kW). That fits what I used for my out and back trip for that day. So the MFM charge log was clearly wrong. MFM is likely just truncating something in the calculations resulting in losing extra minutes somewhere. I won't be able to check Edison until tomorrow, but I expect it will show the ~8 kWh used as it has before.
I also have the Schneider EVSE and the hour indicator bars on the unit will tell you if you go into the 3rd or 4th hour of charge, but that doesn't help with partial hours.
Perhaps you can also setup the email messaging and check the times as I have done. You will get the message that it's starting and that it's complete.
Bottom line, I believe it's pretty buggy right now and hopefully one or more of the 1000 engineers Ford has working on electrification is also working to fix annoyances like this.
2012 Ford Focus Electric White Platinum Tricoat Metallic (4 July 2012)
Schneider EV2430WS Level 2 EVSE