Could this be modelled in AS as well ?
From the AIP (http://en.caa.gov.il/index.php?option=com_content&view=article&id=414&Itemid=278)
Night Flight Restrictions
No restrictions imposed on
aircraft rendering medical assistance,
cloud seeding flights,
Other exceptional circumstances by prior permission from the CAAI.
Runway 30 is not available for take-off between 23:00-06:00 local time, unless approved, in excep- tional circumstances, by airport manager.
Other runways: aircraft shall not take-off between 01:40-05:30 local time during winter and 01:40- 05:00 local time during summer, (definition of winter \ summer according to IATA definitions).
Despite Para. c) take-off between 01:40-02:00 lo- cal time shall be approved, only in exceptional cir- cumstances, by airport manager,