diff --git a/backend/src/graphql/resolver/AdminResolver.ts b/backend/src/graphql/resolver/AdminResolver.ts
index 1e1a0eb38..80c69a864 100644
--- a/backend/src/graphql/resolver/AdminResolver.ts
+++ b/backend/src/graphql/resolver/AdminResolver.ts
@@ -380,7 +380,7 @@ export class AdminResolver {
     let creations = await getUserCreation(user.id, clientTimezoneOffset)
 
     if (contributionToUpdate.contributionDate.getMonth() === creationDateObj.getMonth()) {
-      creations = updateCreations(creations, contributionToUpdate)
+      creations = updateCreations(creations, contributionToUpdate, clientTimezoneOffset)
     } else {
       logger.error('Currently the month of the contribution cannot change.')
       throw new Error('Currently the month of the contribution cannot change.')
diff --git a/backend/src/graphql/resolver/ContributionResolver.ts b/backend/src/graphql/resolver/ContributionResolver.ts
index ef9f83f61..15bdbfc2e 100644
--- a/backend/src/graphql/resolver/ContributionResolver.ts
+++ b/backend/src/graphql/resolver/ContributionResolver.ts
@@ -210,7 +210,7 @@ export class ContributionResolver {
     const creationDateObj = new Date(creationDate)
     let creations = await getUserCreation(user.id, clientTimezoneOffset)
     if (contributionToUpdate.contributionDate.getMonth() === creationDateObj.getMonth()) {
-      creations = updateCreations(creations, contributionToUpdate)
+      creations = updateCreations(creations, contributionToUpdate, clientTimezoneOffset)
     } else {
       logger.error('Currently the month of the contribution cannot change.')
       throw new Error('Currently the month of the contribution cannot change.')
diff --git a/backend/src/graphql/resolver/TransactionLinkResolver.ts b/backend/src/graphql/resolver/TransactionLinkResolver.ts
index 74c531c54..a5c4a5f01 100644
--- a/backend/src/graphql/resolver/TransactionLinkResolver.ts
+++ b/backend/src/graphql/resolver/TransactionLinkResolver.ts
@@ -1,5 +1,5 @@
 import { backendLogger as logger } from '@/server/logger'
-import { Context, getUser } from '@/server/context'
+import { Context, getUser, getClientTimezoneOffset } from '@/server/context'
 import { getConnection } from '@dbTools/typeorm'
 import {
   Resolver,
@@ -169,6 +169,7 @@ export class TransactionLinkResolver {
     @Arg('code', () => String) code: string,
     @Ctx() context: Context,
   ): Promise<boolean> {
+    const clientTimezoneOffset = getClientTimezoneOffset(context)
     const user = getUser(context)
     const now = new Date()
 
@@ -258,9 +259,9 @@ export class TransactionLinkResolver {
           }
         }
 
-        const creations = await getUserCreation(user.id)
+        const creations = await getUserCreation(user.id, clientTimezoneOffset)
         logger.info('open creations', creations)
-        validateContribution(creations, contributionLink.amount, now)
+        validateContribution(creations, contributionLink.amount, now, clientTimezoneOffset)
         const contribution = new DbContribution()
         contribution.userId = user.id
         contribution.createdAt = now
diff --git a/backend/src/graphql/resolver/UserResolver.ts b/backend/src/graphql/resolver/UserResolver.ts
index 2287ede98..43735c0d6 100644
--- a/backend/src/graphql/resolver/UserResolver.ts
+++ b/backend/src/graphql/resolver/UserResolver.ts
@@ -1,6 +1,6 @@
 import fs from 'fs'
 import { backendLogger as logger } from '@/server/logger'
-import { Context, getUser } from '@/server/context'
+import { Context, getUser, getClientTimezoneOffset } from '@/server/context'
 import { Resolver, Query, Args, Arg, Authorized, Ctx, UseMiddleware, Mutation } from 'type-graphql'
 import { getConnection, getCustomRepository, IsNull, Not } from '@dbTools/typeorm'
 import CONFIG from '@/config'
@@ -305,8 +305,9 @@ export class UserResolver {
   async verifyLogin(@Ctx() context: Context): Promise<User> {
     logger.info('verifyLogin...')
     // TODO refactor and do not have duplicate code with login(see below)
+    const clientTimezoneOffset = getClientTimezoneOffset(context)
     const userEntity = getUser(context)
-    const user = new User(userEntity, await getUserCreation(userEntity.id))
+    const user = new User(userEntity, await getUserCreation(userEntity.id, clientTimezoneOffset))
     // user.pubkey = userEntity.pubKey.toString('hex')
     // Elopage Status & Stored PublisherId
     user.hasElopage = await this.hasElopage(context)
@@ -323,6 +324,7 @@ export class UserResolver {
     @Ctx() context: Context,
   ): Promise<User> {
     logger.info(`login with ${email}, ***, ${publisherId} ...`)
+    const clientTimezoneOffset = getClientTimezoneOffset(context)
     email = email.trim().toLowerCase()
     const dbUser = await findUserByEmail(email)
     if (dbUser.deletedAt) {
@@ -353,7 +355,7 @@ export class UserResolver {
     logger.addContext('user', dbUser.id)
     logger.debug('validation of login credentials successful...')
 
-    const user = new User(dbUser, await getUserCreation(dbUser.id))
+    const user = new User(dbUser, await getUserCreation(dbUser.id, clientTimezoneOffset))
     logger.debug(`user= ${JSON.stringify(user, null, 2)}`)
 
     // Elopage Status & Stored PublisherId
diff --git a/backend/src/graphql/resolver/util/creations.ts b/backend/src/graphql/resolver/util/creations.ts
index efd0ea3b0..303337e2b 100644
--- a/backend/src/graphql/resolver/util/creations.ts
+++ b/backend/src/graphql/resolver/util/creations.ts
@@ -13,7 +13,7 @@ export const validateContribution = (
   creations: Decimal[],
   amount: Decimal,
   creationDate: Date,
-  timezoneOffset = 0,
+  timezoneOffset: number,
 ): void => {
   logger.trace('isContributionValid: ', creations, amount, creationDate)
   const index = getCreationIndex(creationDate.getMonth(), timezoneOffset)
@@ -38,7 +38,7 @@ export const validateContribution = (
 
 export const getUserCreations = async (
   ids: number[],
-  timezoneOffset = 0,
+  timezoneOffset: number,
   includePending = true,
 ): Promise<CreationMap[]> => {
   logger.trace('getUserCreations:', ids, includePending)
@@ -91,7 +91,7 @@ export const getUserCreations = async (
 
 export const getUserCreation = async (
   id: number,
-  timezoneOffset = 0,
+  timezoneOffset: number,
   includePending = true,
 ): Promise<Decimal[]> => {
   logger.trace('getUserCreation', id, includePending, timezoneOffset)
@@ -138,7 +138,7 @@ export const isStartEndDateValid = (
 export const updateCreations = (
   creations: Decimal[],
   contribution: Contribution,
-  timezoneOffset = 0,
+  timezoneOffset: number,
 ): Decimal[] => {
   const index = getCreationIndex(contribution.contributionDate.getMonth(), timezoneOffset)