Vector Calendar Widget
One of our favourite calendar widgets published to date, this one is a vertical widget with a large section showing the date, and a week-by-week calendar layout beneath. It's a flat interface style, with a "long shadow" effect on today's date. Best of all, it's provided as a vector graphic, and a PSD, for you to use however you'd like.
About Vector Calendar Widget
A selection of other designs you might like to explore, based on Vector Calendar Widget: