Vremya

Vremya is an scriptable application that sets your Macintosh clock using version 1 of the Network Time Protocol as described in RFC 1059 by D. Mills. This is a simple implementation of NTP, but the accuracy is sufficient for the Macintosh clock.

Just launch and select Set System Clock to synchronize your clock!

Vyremya is in FAT binary, which means it will work optimally for both PPC and 68k machines.