QS:Date max

Maximum date (date_max) ^{(New in 2.05 )}

Description

This question attribute can be used to set the maximum value for the calendar question. It applies to both, the popup-variant of the calendar and the dropdown fields.

Valid values

1. Any date value in format YYYY-MM-DD (eg., 2013-08-24)
2. Any year value
3. Reference to another date/time question (eg., dateofbirth)
4. Expressions With expressions, a maximum date can be dynamically calculated. For example, you can use a date from a previous answer + 4 weeks as a maximum for the present question by entering: date("Y-m-d H:i",strtotime(departuredate)+4*60*60*24*7). Another example, you can set any date not later than today by entering: date('Y-m-d')+1