diff --git a/core-foundation-sys/src/date_formatter.rs b/core-foundation-sys/src/date_formatter.rs
new file mode 100644
index 0000000..f545cfc
--- /dev/null
+++ b/core-foundation-sys/src/date_formatter.rs
@@ -0,0 +1,112 @@
+// Copyright 2023 The Servo Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use std::os::raw::c_void;
+
+use base::{CFIndex, CFOptionFlags, CFAllocatorRef, CFTypeID, CFTypeRef, CFRange, Boolean};
+use string::CFStringRef;
+use locale::CFLocaleRef;
+use date::{CFDateRef, CFAbsoluteTime};
+
+#[repr(C)]
+pub struct __CFDateFormatter(c_void);
+pub type CFDateFormatterRef = *mut __CFDateFormatter;
+
+pub type CFDateFormatterKey = CFStringRef;
+pub type CFDateFormatterStyle = CFIndex;
+pub type CFISO8601DateFormatOptions = CFOptionFlags;
+
+/* Date Formatter Styles */
+pub const kCFDateFormatterNoStyle: CFDateFormatterStyle = 0;
+pub const kCFDateFormatterShortStyle: CFDateFormatterStyle = 1;
+pub const kCFDateFormatterMediumStyle: CFDateFormatterStyle = 2;
+pub const kCFDateFormatterLongStyle: CFDateFormatterStyle = 3;
+pub const kCFDateFormatterFullStyle: CFDateFormatterStyle = 4;
+
+//pub const kCFISO8601DateFormatWithYear: CFISO8601DateFormatOptions = 1 << 0; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithMonth: CFISO8601DateFormatOptions = 1 << 1; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithWeekOfYear: CFISO8601DateFormatOptions = 1 << 2; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithDay: CFISO8601DateFormatOptions = 1 << 4; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithTime: CFISO8601DateFormatOptions = 1 << 5; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithTimeZone: CFISO8601DateFormatOptions = 1 << 6; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithSpaceBetweenDateAndTime: CFISO8601DateFormatOptions = 1 << 7; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithDashSeparatorInDate: CFISO8601DateFormatOptions = 1 << 8; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithColonSeparatorInTime: CFISO8601DateFormatOptions = 1 << 9; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithColonSeparatorInTimeZone: CFISO8601DateFormatOptions = 1 << 10; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithFractionalSeconds: CFISO8601DateFormatOptions = 1 << 11; // macosx(10.13)+
+//pub const kCFISO8601DateFormatWithFullDate: CFISO8601DateFormatOptions = kCFISO8601DateFormatWithYear | kCFISO8601DateFormatWithMonth | kCFISO8601DateFormatWithDay | kCFISO8601DateFormatWithDashSeparatorInDate; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithFullTime: CFISO8601DateFormatOptions = kCFISO8601DateFormatWithTime | kCFISO8601DateFormatWithColonSeparatorInTime | kCFISO8601DateFormatWithTimeZone | kCFISO8601DateFormatWithColonSeparatorInTimeZone; // macosx(10.12)+
+//pub const kCFISO8601DateFormatWithInternetDateTime: CFISO8601DateFormatOptions = kCFISO8601DateFormatWithFullDate | kCFISO8601DateFormatWithFullTime; // macosx(10.12)+
+
+extern {
+    /*
+     * CFDateFormatter.h
+     */
+
+    /* Date Formatter Property Keys */
+    // The values for these keys are all CFType objects.
+    // The specific types for each key are specified above.
+    pub static kCFDateFormatterIsLenient: CFDateFormatterKey; // CFBoolean
+    pub static kCFDateFormatterTimeZone: CFDateFormatterKey; // CFTimeZone
+    pub static kCFDateFormatterCalendarName: CFDateFormatterKey; // CFString
+    pub static kCFDateFormatterDefaultFormat: CFDateFormatterKey; // CFString
+    pub static kCFDateFormatterTwoDigitStartDate: CFDateFormatterKey;  // CFDate
+    pub static kCFDateFormatterDefaultDate: CFDateFormatterKey; // CFDate
+    pub static kCFDateFormatterCalendar: CFDateFormatterKey; // CFCalendar
+    pub static kCFDateFormatterEraSymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterMonthSymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterShortMonthSymbols: CFDateFormatterKey;  // CFArray of CFString
+    pub static kCFDateFormatterWeekdaySymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterShortWeekdaySymbols: CFDateFormatterKey;  // CFArray of CFString
+    pub static kCFDateFormatterAMSymbol: CFDateFormatterKey; // CFString
+    pub static kCFDateFormatterPMSymbol: CFDateFormatterKey; // CFString
+    pub static kCFDateFormatterLongEraSymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterVeryShortMonthSymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterStandaloneMonthSymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterShortStandaloneMonthSymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterVeryShortStandaloneMonthSymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterVeryShortWeekdaySymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterStandaloneWeekdaySymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterShortStandaloneWeekdaySymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterVeryShortStandaloneWeekdaySymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterQuarterSymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterShortQuarterSymbols: CFDateFormatterKey; // CFArray of CFString
+    pub static kCFDateFormatterStandaloneQuarterSymbols: CFDateFormatterKey;  // CFArray of CFString
+    pub static kCFDateFormatterShortStandaloneQuarterSymbols: CFDateFormatterKey;  // CFArray of CFString
+    pub static kCFDateFormatterGregorianStartDate: CFDateFormatterKey;  // CFDate
+    pub static kCFDateFormatterDoesRelativeDateFormattingKey: CFDateFormatterKey;  // CFBoolean
+
+    /* Creating a Date Formatter */
+    pub fn CFDateFormatterCreate(allocator: CFAllocatorRef, locale: CFLocaleRef, dateStyle: CFDateFormatterStyle, timeStyle: CFDateFormatterStyle) -> CFDateFormatterRef;
+
+    /* Configuring a Date Formatter */
+    pub fn CFDateFormatterSetFormat(formatter: CFDateFormatterRef, formatString: CFStringRef);
+    pub fn CFDateFormatterSetProperty(formatter: CFDateFormatterRef, key: CFStringRef, value: CFTypeRef);
+
+    /* Parsing Strings */
+    pub fn CFDateFormatterCreateDateFromString(allocator: CFAllocatorRef, formatter: CFDateFormatterRef, string: CFStringRef, rangep: *mut CFRange) -> CFDateRef;
+    pub fn CFDateFormatterGetAbsoluteTimeFromString(formatter: CFDateFormatterRef, string: CFStringRef, rangep: *mut CFRange, atp: *mut CFAbsoluteTime) -> Boolean;
+
+    /* Creating Strings From Data */
+    pub fn CFDateFormatterCreateStringWithAbsoluteTime(allocator: CFAllocatorRef, formatter: CFDateFormatterRef, at: CFAbsoluteTime) -> CFStringRef;
+    pub fn CFDateFormatterCreateStringWithDate(allocator: CFAllocatorRef, formatter: CFDateFormatterRef, date: CFDateRef) -> CFStringRef;
+    pub fn CFDateFormatterCreateDateFormatFromTemplate(allocator: CFAllocatorRef, tmplate: CFStringRef, options: CFOptionFlags, locale: CFLocaleRef) -> CFStringRef;
+
+    /* Getting Information About a Date Formatter */
+    pub fn CFDateFormatterCopyProperty(formatter: CFDateFormatterRef, key: CFDateFormatterKey) -> CFTypeRef;
+    pub fn CFDateFormatterGetDateStyle(formatter: CFDateFormatterRef) -> CFDateFormatterStyle;
+    pub fn CFDateFormatterGetFormat(formatter: CFDateFormatterRef) -> CFStringRef;
+    pub fn CFDateFormatterGetLocale(formatter: CFDateFormatterRef) -> CFLocaleRef;
+    pub fn CFDateFormatterGetTimeStyle(formatter: CFDateFormatterRef) -> CFDateFormatterStyle;
+
+    /* Getting the CFDateFormatter Type ID */
+    pub fn CFDateFormatterGetTypeID() -> CFTypeID;
+
+    //pub fn CFDateFormatterCreateISO8601Formatter(allocator: CFAllocatorRef, formatOptions: CFISO8601DateFormatOptions) -> CFDateFormatterRef; // macosx(10.12)+
+}
diff --git a/core-foundation-sys/src/lib.rs b/core-foundation-sys/src/lib.rs
index 9fb1554..56977d3 100644
--- a/core-foundation-sys/src/lib.rs
+++ b/core-foundation-sys/src/lib.rs
@@ -28,6 +28,7 @@ pub mod calendar;
 pub mod characterset;
 pub mod data;
 pub mod date;
+pub mod date_formatter;
 pub mod dictionary;
 pub mod error;
 pub mod filedescriptor;