If I buy Chicago CityPASS online today, when does the 9-day valid period begin?
If you purchase today, you may begin using your booklet any day from now until February 29, 2012. Purchase e‑tickets within 6 months of first use. Chicago CityPASS tickets are valid for one-time use within nine consecutive calendar days. The first attraction you visit stamps or scans your booklet to activate the booklet’s nine-day validity period. For example, if you visit the Adler Planetarium on Monday, you have the rest of that day, plus the following eight days to use the other four tickets in your booklet.
