Yugioh Sevens may be set in a corporate controlled surveillance state, but the most terrifying implication is by far this frame saying that hours have at least 70 minutes in the ygo universe

yugioh, after dm, is set in the future

gx is set in the early 2010s, 5ds in the mid 2030s, zexal in the late 21st century, arc v in the early 22nd century, and vrains in the mid 22nd century. i assume sevens is around the late 22nd century or early 23rd century.

i guess we can assume that at some point everyone switched to metric units of time instead of the imperial units of time we use today

which has 100 seconds per minutes, 100 minutes per hour, 20 hours per day, 7 days per week, 28 days per month, and 13 months per year with new year’s day at the beginning of the year and leap days being at the end of the year and are holidays that are not part of any month nor are they part of the week