need help choosing calendar environment

Eric S. Johansson esj at
Thu Nov 9 02:56:13 UTC 2006

Todd Slater wrote:
> On 11/7/06, Eric S. Johansson <esj at> wrote:
>> I'm on a Windows laptop
>> she's on Breezy
>> I'm on all sorts of different networks (network tramp :-)
>> she's wired into the home network
>> We both need access to the calendar at any time, on or even off
>> network(local copy).
>> The calendars should synchronize whenever my little laptop can reach its
>> home network.  Synchronization can be manual.
>> no PHP or webdav (please)
>> Any suggestions for a calendar?
>> thanks
> Let me see if I understand what you're after: you and she want to
> share a calendar at the same time, but be able to carry a local copy
> with you, and so be able to edit offline, and then sync back up?

Mostly correct.  If we are both on the same network, we want to share 
the same time but if I am can't connect, I want to be able to perform 
operations on the calendar that will be propagated to the common 
calendar when I reconnect.

> The only sync tool that I'm familiar with that can sync changes made
> to *both* copies is Unison. If you go that route, the calendar is
> mostly irrelevant as you'll just need to sync local copies of the
> calendar file to the network copy.

unison is a file synchronizer not a data element synchronizer.  And if 
you look at the Sunbird wiki, it has a really good discussion about 
synchronization issues when you can't count on clock synchronization on 
all machines.

I was very impressed with the quality of that article.

> You could try Mozilla's Sunbird or
> whatever they're calling it now, or perhaps pAgenda.

I have it installed and it looks like it should be useful but the Borg 
calendar tool is currently a better tool (in my opinion).  So much so 
that I'm starting to back off from my disconnected operation requirement 
and look for a way to use it as a server based instead of a file-based 
calendar sharing method.


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