set theJSON to "{＼"timeblocksDefs＼": {
＼"normal＼": {
＼"morning＼": ＼"06-09＼",
＼"day＼": ＼"09-18＼",
＼"primetime＼": ＼"18-22＼",
＼"nighttime＼": ＼"22-06＼"
},
＼"lateprime＼": {
＼"morning＼": ＼"06-09＼",
＼"day＼": ＼"09-19＼",
＼"primetime＼": ＼"19-23＼",
＼"nighttime＼": ＼"23-06＼"
}
}}
"

set theDict to my convertJSONToDictionary:theJSON
set theResult to (theDict’s valueForKeyPath:"timeblocksDefs.lateprime")

— convert to AS equivalent
set theResult to item 1 of ((current application’s NSArray’s arrayWithObject:theResult) as list)

on convertJSONToDictionary:jsonString
　　set aString to current application’s NSString’s stringWithString:jsonString
　　set theData to aString’s dataUsingEncoding:(current application’s NSUTF8StringEncoding)
　　set {theDict, theError} to current application’s NSJSONSerialization’s JSONObjectWithData:theData options:0 |error|:(reference)
　　if theDict is missing value then error (theError’s localizedDescription() as text) number -10000
　　return theDict
end convertJSONToDictionary: