[tlug] Combining calendars?

[Shmuel Fomberg <shmuelfomberg@example.com>]

Hi All.

A friend of mine need to combine calendars from several sources (all publishing ical links) to a single calendar that he can show / share.

Google Calendar let you import external calendars to your account, and can show then together, but you can't export them together, only individually.

Before I start writing code, is there any service that can do that for me?

For share / show, I mean as embedding to a website, and / or having a page