use std::os::raw::c_void;
use base::{CFAllocatorRef, CFTypeID};
use date::{CFTimeInterval, CFAbsoluteTime};
use string::CFStringRef;
#[repr(C)]
pub struct __CFTimeZone(c_void);
pub type CFTimeZoneRef = *const __CFTimeZone;
extern {
pub fn CFTimeZoneCopySystem() -> CFTimeZoneRef;
pub fn CFTimeZoneCopyDefault() -> CFTimeZoneRef;
pub fn CFTimeZoneCreateWithTimeIntervalFromGMT(allocator: CFAllocatorRef, interval: CFTimeInterval) -> CFTimeZoneRef;
pub fn CFTimeZoneGetSecondsFromGMT(tz: CFTimeZoneRef, time: CFAbsoluteTime) -> CFTimeInterval;
pub fn CFTimeZoneGetTypeID() -> CFTypeID;
pub fn CFTimeZoneGetName(tz: CFTimeZoneRef) -> CFStringRef;
}