diff --git a/nuxt.config.ts b/nuxt.config.ts
index d4eb837..5b7cb0b 100644
--- a/nuxt.config.ts
+++ b/nuxt.config.ts
@@ -9,6 +9,7 @@ export default defineNuxtConfig({
 		vapidPrivateKeyFile: "",
 		public: {
 			defaultTimezone: "Europe/Oslo",
+			defaultLocale: "en-GB",
 			vapidPublicKey: "",
 		}
 	},
diff --git a/pages/account/settings.vue b/pages/account/settings.vue
index 04691d5..5b4ac8c 100644
--- a/pages/account/settings.vue
+++ b/pages/account/settings.vue
@@ -10,6 +10,10 @@
 				Timezone
 				<input type="text" v-model="timezone" :placeholder="accountStore.defaultTimezone">
 			</label>
+			<label>
+				Locale
+				<input type="text" v-model="locale" :placeholder="accountStore.defaultLocale">
+			</label>
 			<button type="submit">
 				Save
 			</button>
@@ -38,6 +42,7 @@ const sessionStore = useSessionStore();
 const accountStore = useAccountStore();
 
 const timezone = ref(accountStore.timezone ?? "");
+const locale = ref(accountStore.locale ?? "");
 
 async function changeSettings() {
 	try {
@@ -45,6 +50,7 @@ async function changeSettings() {
 			method: "patch",
 			body: {
 				timezone: timezone.value,
+				locale: locale.value,
 			}
 		});
 		await sessionStore.fetch();
diff --git a/server/api/auth/account.patch.ts b/server/api/auth/account.patch.ts
index 948392c..d148e67 100644
--- a/server/api/auth/account.patch.ts
+++ b/server/api/auth/account.patch.ts
@@ -24,6 +24,15 @@ export default defineEventHandler(async (event) => {
 			});
 		}
 	}
+	if (patch.locale?.length) {
+		const locale = DateTime.local({ locale: patch.locale }).resolvedLocaleOptions().locale;
+		if (locale !== patch.locale) {
+			throw createError({
+				status: 400,
+				message: `Invalid locale: the locale "${patch.locale}" is not supported (was treated as "${locale}")`
+			});
+		}
+	}
 
 	const accounts = await readAccounts();
 	const sessionAccount = accounts.find(account => account.id === session.accountId);
@@ -51,6 +60,12 @@ export default defineEventHandler(async (event) => {
 		else
 			delete sessionAccount.timezone;
 	}
+	if (patch.locale !== undefined) {
+		if (patch.locale)
+			sessionAccount.locale = patch.locale;
+		else
+			delete sessionAccount.locale;
+	}
 	await writeAccounts(accounts);
 
 	// Update Schedule counts.
diff --git a/shared/types/api.ts b/shared/types/api.ts
index 9ff31bc..ce51f71 100644
--- a/shared/types/api.ts
+++ b/shared/types/api.ts
@@ -9,6 +9,7 @@ export interface ApiAccount {
 	interestedEventIds?: number[],
 	interestedEventSlotIds?: number[],
 	timezone?: string,
+	locale?: string,
 }
 
 export const apiAccountPatchSchema = z.object({
@@ -16,6 +17,7 @@ export const apiAccountPatchSchema = z.object({
 	interestedEventIds: z.optional(z.array(z.number())),
 	interestedEventSlotIds: z.optional(z.array(z.number())),
 	timezone: z.optional(z.string()),
+	locale: z.optional(z.string()),
 });
 export type ApiAccountPatch = z.infer<typeof apiAccountPatchSchema>;
 
diff --git a/stores/account.ts b/stores/account.ts
index e1f4c03..bf92f77 100644
--- a/stores/account.ts
+++ b/stores/account.ts
@@ -8,6 +8,7 @@ export const useAccountStore = defineStore("account", () => {
 		id: ref<number>(),
 		name: ref<string>(),
 		timezone: ref<string>(),
+		locale: ref<string>(),
 		type: ref<ApiAccount["type"]>(),
 		interestedEventIds: ref<Set<number>>(new Set()),
 		interestedEventSlotIds: ref<Set<number>>(new Set()),
@@ -19,6 +20,7 @@ export const useAccountStore = defineStore("account", () => {
 		state.id.value = account?.id;
 		state.name.value = account?.name;
 		state.timezone.value = account?.timezone;
+		state.locale.value = account?.locale;
 		state.type.value = account?.type;
 		state.interestedEventIds.value = new Set(account?.interestedEventIds ?? []);
 		state.interestedEventSlotIds.value = new Set(account?.interestedEventSlotIds ?? []);
@@ -30,6 +32,8 @@ export const useAccountStore = defineStore("account", () => {
 		canEditPublic: computed(() => state.type.value === "admin"),
 		activeTimezone: computed(() => state.timezone.value || runtimeConfig.public.defaultTimezone),
 		defaultTimezone: computed(() => runtimeConfig.public.defaultTimezone),
+		activeLocale: computed(() => state.locale.value || runtimeConfig.public.defaultLocale),
+		defaultLocale: computed(() => runtimeConfig.public.defaultLocale),
 	};
 
 	const actions = {