User claims auction was ended before time was out

[vohmar]

User claims that their bid on an English auction was denied with message auction is finished when there was still about 10 seconds left on the clock.

We have no proof on that, but in from the logs we see the the bid was received by the system on the second the auction ended

Feb 6 12:11:12 auction-tt 2a78906c424f[29302]: method=POST path=/auctions/b1a11592-ea56-4f59-9c56-f60a21b0c4cd/english_offers format=html controller=EnglishOffersController action=create status=302 duration=57.06 view=0.00 db=32.53 location=https://auction.internet.ee/

Hypothesis: users local browser/computer clock was about 10 seconds off. The countdown timer users users local timezone to show correct end time. Is the countdown timer affected by that ie countdown users users local time against system provided end time to calculate the time left and shows that in the counter? If so, would it be possible to use server time for the countdown?