diff --git a/back/methods/vn-user/is-token-valid.js b/back/methods/vn-user/is-token-valid.js
index c5c05a1788..23b68797ea 100644
--- a/back/methods/vn-user/is-token-valid.js
+++ b/back/methods/vn-user/is-token-valid.js
@@ -2,10 +2,8 @@ const tokenConfig = require('./token-config');
 
 module.exports = async token => {
     const accessTokenConfig = await tokenConfig();
-    let now = Date.now();
-    if (Date?.vnNow !== undefined)
-        now = Date.vnNow();
+    const now = Date.now();
     const differenceMilliseconds = now - token.created;
     const differenceSeconds = Math.floor(differenceMilliseconds / 1000);
-    return differenceSeconds > accessTokenConfig.renewPeriod - accessTokenConfig.courtesyTime;
+    return differenceSeconds < accessTokenConfig.renewPeriod - accessTokenConfig.courtesyTime;
 };
diff --git a/back/methods/vn-user/renew-token.js b/back/methods/vn-user/renew-token.js
index 4226886fc2..cb88e665dc 100644
--- a/back/methods/vn-user/renew-token.js
+++ b/back/methods/vn-user/renew-token.js
@@ -29,7 +29,7 @@ module.exports = Self => {
 
         // Check if current token is valid
         const isValid = await Self.validateToken(token);
-        if (!isValid) throw new UserError(`The renew period has not been exceeded`, 'periodNotExceeded');
+        if (isValid) throw new UserError(`The renew period has not been exceeded`, 'periodNotExceeded');
 
         const {courtesyTime} = await tokenConfig();
 
diff --git a/back/methods/vn-user/specs/validate-token.spec.js b/back/methods/vn-user/specs/validate-token.spec.js
index 25207336d7..ec254d0e5a 100644
--- a/back/methods/vn-user/specs/validate-token.spec.js
+++ b/back/methods/vn-user/specs/validate-token.spec.js
@@ -29,13 +29,13 @@ describe('Validate Token', () => {
     });
 
     it('Token is not expired', async() => {
-        jasmine.clock().mockDate(new Date(startingTime + 21600000));
         const isValid = await models.VnUser.validateToken(ctx.req.accessToken);
 
         expect(isValid).toBeTrue();
     });
 
     it('Token is expired', async() => {
+        jasmine.clock().mockDate(new Date(startingTime + 21600000));
         const isValid = await models.VnUser.validateToken(ctx.req.accessToken);
 
         expect(isValid).toBeFalse();