In celebration of the Daylight Saving Time changes over the past two weekends, we (at panagenda) have released a new sidebar app for the Notes client to help you manage your timezones. For free! Please see the panagenda blog for details.

Here's a screenshot from earlier this morning:

The entries in blue are currently outside of business hours ("night-time" for my purposes), and the clocks update throughout the day so I can always glance at the times and say things like, "Oops, it's too late to call" or "They're probably at lunch" or "It would be so awesome to live in Hawaii".

Tested on Mac and Windows, IBM Notes client version 8.0.2 and up. It's been very useful for me, and hopefully it'll be useful for you too.