Use Google Calendar? Own an iPod? Synchronize your iPod with Google Calendar automatically with the free iPodCALsync. Hook up your iPod to your PC and that's it. iPodCALsync takes care of everything else.
Cool. Hover your mouse over any part of the world map and it will tell you the time of the nearest city. Even the world map itself has bright and shaded areas to indicate day and night.
If you are a blogger in a relevant niche I highly recommend joining Sphinn. It is still in Beta and there is a strong sense of community. Now is a great time to start building your profile there and driving traffic.