I use and like this script, but there are features I'd love to see added, like the ability to keep track of time as well as the date, and the ability to maintain two separate "timelines" (for when my party splits up for extended periods of time). But the script creator has gone underground. I have used Multi-World Calendar too, but went back to LazyCalendar because the latter has moon cycle support and (to me) a nicer interface.