diff --git a/index.d.ts b/index.d.ts
index ae8f0da..38def40 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1,9 +1,9 @@
 declare module 'praycalc' {
     export function getMoon(date: Date): MoonReturnType;
-    export function getTimes(date: Date, lat: number, lng: number, elevation?: number, temperature?: number, pressure?: number): TimesReturnType;
-    export function calcTimes(date: Date, lat: number, lng: number, elevation?: number, temperature?: number, pressure?: number): CalcTimesReturnType;
-    export function getTimesAll(date: Date, lat: number, lng: number, elevation?: number, temperature?: number, pressure?: number): TimesAllReturnType;
-    export function calcTimesAll(date: Date, lat: number, lng: number, elevation?: number, temperature?: number, pressure?: number): CalcTimesAllReturnType;
+    export function getTimes(date: Date, lat: number, lng: number, tz: number, elevation?: number, temperature?: number, pressure?: number): TimesReturnType;
+    export function calcTimes(date: Date, lat: number, lng: number, tz: number, elevation?: number, temperature?: number, pressure?: number): CalcTimesReturnType;
+    export function getTimesAll(date: Date, lat: number, lng: number, tz: number, elevation?: number, temperature?: number, pressure?: number): TimesAllReturnType;
+    export function calcTimesAll(date: Date, lat: number, lng: number, tz: number, elevation?: number, temperature?: number, pressure?: number): CalcTimesAllReturnType;
   
     interface MoonReturnType {
         fraction: number;