fix: Fix optional type for timezone plugin (#1081)

fixes #1079
splashwizard · Sep 27, 2020 · a6ebcf2 · a6ebcf2
1 parent e248f33
commit a6ebcf2
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/types/plugin/timezone.d.ts b/types/plugin/timezone.d.ts
@@ -5,11 +5,11 @@ export = plugin
 
 declare module 'dayjs' {
   interface Dayjs {
-    tz(timezone: string): Dayjs
+    tz(timezone?: string): Dayjs
   }
 
   interface DayjsTimezone {
-    (date: ConfigType, timezone: string): Dayjs
+    (date: ConfigType, timezone?: string): Dayjs
     guess(): string
     setDefault(timezone?: string): void
   }