iCal

If you're in need of a web calendar server, iCal is definitely worth checking out. This software allows anyone with a web browser to access calendars on either a local intranet or the internet. You can create as many calendars as needed and decide who can access them. Security settings give you control over who can make entries.

One of the standout features of iCal is the ability to create subordinate calendars and then roll them up into a master calendar. This makes it easy to keep track of multiple schedules with just one view. Additionally, you can customize the appearance of the calendar with colors, fonts, titles, headers, and more.

If you need to add custom data entry fields to your calendars, iCal has got you covered. This software allows you to create fields that are tailored to your specific needs. Plus, you'll be glad to know that iCal supports multiple languages.

Overall, iCal seems like a solid choice for anyone in need of a web calendar server with a fair amount of customization options.