Loss limit reset?

Does anyone actually know how reliable the loss limit reset schedule is across these sites? I’ve hit my weekly limit once or twice after a bad spin streak and noticed the timer doesn't always match up with when I set it originally. Sometimes it resets in the middle of the night, sometimes it’s hours later. I’m trying to get a handle on whether it’s based on the calendar day, or an actual 168-hour clock ticking since the limit got hit.

My last review I pointed out a site for being vague about this, but now I’m second guessing if maybe it’s just normal everywhere. I know it matters for some people more than others, but if you’re planning out bets for a specific match or want to get back on after a cold streak, this can be a pretty big deal. Curious how others manage it, or if anyone tracks their resets.