diff --git a/src/constants/format.ts b/src/constants/format.ts
index 9e39128..dd9db12 100644
--- a/src/constants/format.ts
+++ b/src/constants/format.ts
@@ -1,2 +1,12 @@
+import type {LongDateFormat} from '../settings/types';
+
 export const DEFAULT_SYSTEM_DATE_FORMAT = 'YYYY-MM-DD';
 export const INVALID_DATE_STRING = 'Invalid Date';
+export const englishFormats = {
+    LTS: 'h:mm:ss A',
+    LT: 'h:mm A',
+    L: 'MM/DD/YYYY',
+    LL: 'MMMM D, YYYY',
+    LLL: 'MMMM D, YYYY h:mm A',
+    LLLL: 'dddd, MMMM D, YYYY h:mm A',
+} as const satisfies LongDateFormat;
diff --git a/src/dateTime/format.ts b/src/dateTime/format.ts
index 0c7f7bc..68dadce 100644
--- a/src/dateTime/format.ts
+++ b/src/dateTime/format.ts
@@ -1,17 +1,9 @@
+import {englishFormats} from '../constants';
 import {settings} from '../settings';
 import type {Locale, LongDateFormat} from '../settings/types';
 import {parseZoneInfo} from '../timeZone';
 import type {DateTime} from '../typings';
 
-export const englishFormats = {
-    LTS: 'h:mm:ss A',
-    LT: 'h:mm A',
-    L: 'MM/DD/YYYY',
-    LL: 'MMMM D, YYYY',
-    LLL: 'MMMM D, YYYY h:mm A',
-    LLLL: 'dddd, MMMM D, YYYY h:mm A',
-} satisfies LongDateFormat;
-
 function getShortLocalizedFormatFromLongLocalizedFormat(formatBis: string) {
     return formatBis.replace(
         /(\[[^\]]+])|(MMMM|MM|DD|dddd)/g,
diff --git a/src/dayjs/index.ts b/src/dayjs/index.ts
index f416cd2..ef6c36c 100644
--- a/src/dayjs/index.ts
+++ b/src/dayjs/index.ts
@@ -3,10 +3,14 @@ import customParseFormat from 'dayjs/plugin/customParseFormat';
 import updateLocale from 'dayjs/plugin/updateLocale';
 import utc from 'dayjs/plugin/utc';
 
+import {englishFormats} from '../constants';
+
 dayjs.extend(customParseFormat);
 dayjs.extend(utc);
 dayjs.extend(updateLocale);
 
+dayjs.Ls['en'].formats = englishFormats;
+
 export default dayjs;
 
 export type {ConfigTypeMap, ConfigType} from 'dayjs';