• Hello, Guest! Welcome back, and be sure to check out this post for more info about the recent service interruption and migration.

Y20K bug in Mac OS 8, System 7 & 6 (FIX)


Well-known member
In case any one should forget, Mac OS 8, System 7 and System 6 can't set their clock beyond 2020. Click the link below for a fix, a video describing the issue and a software download to fix the issue is available.


Last edited by a moderator:


Well-known member
That depends on, if your Mac came into 2020 by himself. If you would lose  pvram battery supply now and had to reset the clock, you are thrown back to the 20th century. Even if you simulate new year‘s eve 2019, let the Mac enter 2020 by himself and then try to switch to the now it will not work. So the setdate tool is a must have for all of us now.