System/Library/PrivateFrameworks/HeartHealthDaemon.framework

HKHRJulianDayTimeZoneState.h

NSObject

@class NSDate;

@interface HKHRJulianDayTimeZoneState : NSObject

@property (nonatomic) long long count;
@property (retain, nonatomic) NSDate *lastSampleDate;

- (id)init;
- (void).cxx_destruct;

@end