File system check failed Ubuntu

Hi guys, I got this file system check failed upon booting a ubuntu box today. I searched the forums as usual but the solutions were too complex. after running the fsck check command, I concluded that the system time was wrong. so I rebooted and reset the system time in the BIOS and viola, that fixed the problem. Of course the user explained that the system time is usually wrong after booting into windows partition. So take note.