Hmm, maybe your opponent is a Premium member and went on vacation? As I understand it, the site will allot some vacation time from Premium members when their move time's about up.
Or if your opponent's a free range member, they may have manually chosen to use some vacation time to top up their remaining move time.
sftac
ps. Say, maybe only weekdays count? I've not played an "online/correspondence" game here of any duration, perhaps someone's noticed whether or not weekends do not 'count'.
In one of my correspondence games 3d/move I did my move on Friday 12.8. my opponent should lose on time today, but his time was somehow restored to 2days (2days? if it really is two days that mean that i did my move today?) Hows that possible?