[rules-users] How to say that two events have to happen during the same time interval

Hi, I'm trying to find a easy way to express that two events A and B have to happen during the same time interval. The events have each a duration > 0. A example condition could be: The event A and B have to happen during the same 60 seconds. For me it includes several possibilites: * A can start before B and ~ end before B starts ~ end during B ~ end after B ends * The same can be possible for B * A and B start/end/both at the same time In any case the maximum duration from the first start time to the last end time is e.g. 60s. Is there a easy way to express that. I can only think of specifying the several possibilities as conditions. Thank you! :) Tina