A simple, interactive date wheel to measure the number of weeks between dates. Schedule an event, estimate a project deadline, or see how many weeks you have until vacation. Works exactly like a paper date wheel. Finding a date in the future: - Rotate inside to align starting date (red arrow) - Look at date above the number of weeks Measuring time until future date: - Rotate inside to align starting date (red arrow) - Look at number of weeks below future date Other features: - Changes display on leap years to account for extra day - Information icon to show/hide instructions on screen - Pinch to zoom in and out