I'm using Skritter on my phone and on my laptop at the same time. I'll do a few dozen words on one, then my finger gets tired and I switch over to the other until I get a cramp in the hand and I switch back.

I'm noticing that the two clocks are off by about a minute and a half difference. Usually, I wouldn't care at all but I'm frantically trying to catch up on the Skritter challenge by doing a minimum of two hours a day and with the amount of catching up I've got to do per day... it makes a difference.

Yeah, I have this problem, but it also works if, while you are studying, you click on "Progress" and then go back to "Study"; the last time showing on your clock before you clicked off from studying is NOT the same time that shows up when you go back to studying. I THINK it does some sort of rewinding to take into account any amount of time that you sat not doing anything, but that's just a guess. I've been doing that (going into Progress) to check my time for Challenge purposes, and find the problem shows up there, too, on the graph at the bottom showing how much time I've spent each day over the past week. There have been times where the clock shows 1:01:xx, but the progress graph shows 59.xx minutes studied.

Depending on lag, whether all the reviews were finished saving, whether you refreshed the pages, rounding errors, etc., the times can be off by a bit like that. We include a little bit of leniency in the contest time counting for this reason. You are refreshing the page on your phone after studying on your laptop and vice versa, right?

It didn't initially occur to me to refresh. Once I noticed the time difference, I did a refresh on both phone and laptop and the clocks still read different by about a minute.

Another, different problem...

Obviously, since I'm hoping to complete the challenge (and at this point that means lots of two hours days) I shouldn't complain but an error in my favor is still an error and it wouldn't be right not to mention this.

My progress bar seems to have added the laptop time and the phone time together so that it says I did more than 5 hours yesterday instead of the 2.5 or so I actually did. (Which neatly explains why I didn't remember doing 8 hours in one day on April's loooong day of serious boredom.)

When you leave a prompt sitting there on Skritter, it'll count up to 30 seconds and then determine that you're AFK. That'll mess up the stats for that prompt, and give you a little extra time (depending on how often you're switching). You may also see Skritter load some duplicate prompts that you've already done on the other screen. We can detect this, so try not to do this too much during a challenge period. If you have Skrittered on another screen, it's better to refresh the page before starting to practice so that everything gets sync'd up properly.

Understood. For future episodes of switching back and forth I'll make sure to reload first. There is the secondary problem that, at least according to my progress stats I've been over counted in total time. I think (since I only did about 2.5 hours) that it must be adding cumulatively the time the laptop shows to the time the phone shows.